8965531920 has 40 divisors (see below), whose sum is σ = 27793149696. Its totient is φ = 2390808448.

The previous prime is 8965531879. The next prime is 8965531933. The reversal of 8965531920 is 291355698.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8965531920.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18677952 + ... + 18678431.

Almost surely, 2^8965531920 is an apocalyptic number.

8965531920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8965531920 is an abundant number, since it is smaller than the sum of its proper divisors (18827617776).

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

8965531920 is a wasteful number, since it uses less digits than its factorization.

8965531920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37356399 (or 37356393 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 8965531920 is about 94686.4928065244. The cubic root of 8965531920 is about 2077.4250001525.

The spelling of 8965531920 in words is "eight billion, nine hundred sixty-five million, five hundred thirty-one thousand, nine hundred twenty".