9864755964 has 96 divisors (see below), whose sum is σ = 29941900800. Its totient is φ = 2749749120.

The previous prime is 9864755911. The next prime is 9864755987. The reversal of 9864755964 is 4695574689.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128134 + ... + 190125.

It is an arithmetic number, because the mean of its divisors is an integer number (311894800).

Almost surely, 2^9864755964 is an apocalyptic number.

It is an amenable number.

9864755964 is an abundant number, since it is smaller than the sum of its proper divisors (20077144836).

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

9864755964 is a wasteful number, since it uses less digits than its factorization.

9864755964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318320 (or 318312 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The square root of 9864755964 is about 99321.4778585176. The cubic root of 9864755964 is about 2144.6780914547.

The spelling of 9864755964 in words is "nine billion, eight hundred sixty-four million, seven hundred fifty-five thousand, nine hundred sixty-four".