4464766561 has 4 divisors (see below), whose sum is σ = 4476244500. Its totient is φ = 4453288624.

The previous prime is 4464766519. The next prime is 4464766573. The reversal of 4464766561 is 1656674644.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1580539536 + 2884227025 = 39756^2 + 53705^2 .

It is a cyclic number.

It is not a de Polignac number, because 4464766561 - 2¹³ = 4464758369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4464766511) 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, 5738386 + ... + 5739163.

It is an arithmetic number, because the mean of its divisors is an integer number (1119061125).

Almost surely, 2^4464766561 is an apocalyptic number.

It is an amenable number.

4464766561 is a deficient number, since it is larger than the sum of its proper divisors (11477939).

4464766561 is a wasteful number, since it uses less digits than its factorization.

4464766561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11477938.

The product of its digits is 2903040, while the sum is 49.

The square root of 4464766561 is about 66818.9087085385. The cubic root of 4464766561 is about 1646.6435055823.

The spelling of 4464766561 in words is "four billion, four hundred sixty-four million, seven hundred sixty-six thousand, five hundred sixty-one".