9976501864 has 16 divisors (see below), whose sum is σ = 21378218400. Its totient is φ = 4275643632.

The previous prime is 9976501861. The next prime is 9976501877. The reversal of 9976501864 is 4681056799.

It is a super-3 number, since 3×9976501864³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9976501861) 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, 89075854 + ... + 89075965.

It is an arithmetic number, because the mean of its divisors is an integer number (1336138650).

Almost surely, 2^9976501864 is an apocalyptic number.

It is an amenable number.

9976501864 is an abundant number, since it is smaller than the sum of its proper divisors (11401716536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9976501864 is a wasteful number, since it uses less digits than its factorization.

9976501864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178151832 (or 178151828 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 9976501864 is about 99882.4402184889. The cubic root of 9976501864 is about 2152.7458598833.

The spelling of 9976501864 in words is "nine billion, nine hundred seventy-six million, five hundred one thousand, eight hundred sixty-four".