4661637471043 has 4 divisors (see below), whose sum is σ = 5327585681200. Its totient is φ = 3995689260888.

The previous prime is 4661637470983. The next prime is 4661637471131. The reversal of 4661637471043 is 3401747361664.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4661637471043 is a prime.

It is a super-2 number, since 2×4661637471043² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4661637471143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332974105068 + ... + 332974105081.

It is an arithmetic number, because the mean of its divisors is an integer number (1331896420300).

Almost surely, 2^{4661637471043} is an apocalyptic number.

4661637471043 is a deficient number, since it is larger than the sum of its proper divisors (665948210157).

4661637471043 is an equidigital number, since it uses as much as digits as its factorization.

4661637471043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665948210156.

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 4661637471043 in words is "four trillion, six hundred sixty-one billion, six hundred thirty-seven million, four hundred seventy-one thousand, forty-three".