4757498206561 has 3 divisors (see below), whose sum is σ = 4757500387731. Its totient is φ = 4757496025392.

The previous prime is 4757498206529. The next prime is 4757498206567. The reversal of 4757498206561 is 1656028947574.

The square root of 4757498206561 is 2181169.

It is a perfect power (a square), and thus also a powerful number.

4757498206561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3534704566561 + 1222793640000 = 1880081^2 + 1105800^2 .

It is not a de Polignac number, because 4757498206561 - 2⁵ = 4757498206529 is a prime.

It is a super-2 number, since 2×4757498206561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4757498206493 and 4757498206502.

It is not an unprimeable number, because it can be changed into a prime (4757498206567) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1090585 + ... + 3271753.

It is an arithmetic number, because the mean of its divisors is an integer number (1585833462577).

Almost surely, 2^{4757498206561} is an apocalyptic number.

4757498206561 is the 2181169-th square number.

4757498206561 is the 1090585-th centered octagonal number.

It is an amenable number.

4757498206561 is a deficient number, since it is larger than the sum of its proper divisors (2181170).

4757498206561 is an frugal number, since it uses more digits than its factorization.

4757498206561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362338 (or 2181169 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 64.

Multiplying 4757498206561 by its sum of digits (64), we get a square (304479885219904 = 17449352²).

The spelling of 4757498206561 in words is "four trillion, seven hundred fifty-seven billion, four hundred ninety-eight million, two hundred six thousand, five hundred sixty-one".