6524390961 has 12 divisors (see below), whose sum is σ = 10280858640. Its totient is φ = 3954176280.

The previous prime is 6524390947. The next prime is 6524391007. The reversal of 6524390961 is 1690934256.

6524390961 is a `hidden beast` number, since 6 + 524 + 39 + 0 + 96 + 1 = 666.

It is not a de Polignac number, because 6524390961 - 2⁶ = 6524390897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6524390911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32951371 + ... + 32951568.

It is an arithmetic number, because the mean of its divisors is an integer number (856738220).

Almost surely, 2^6524390961 is an apocalyptic number.

It is an amenable number.

6524390961 is a deficient number, since it is larger than the sum of its proper divisors (3756467679).

6524390961 is a wasteful number, since it uses less digits than its factorization.

6524390961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65902956 (or 65902953 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 6524390961 is about 80773.7021622756. The cubic root of 6524390961 is about 1868.5870116631.

The spelling of 6524390961 in words is "six billion, five hundred twenty-four million, three hundred ninety thousand, nine hundred sixty-one".