8965400521 has 16 divisors (see below), whose sum is σ = 11181634560. Its totient is φ = 6983531280.

The previous prime is 8965400501. The next prime is 8965400527. The reversal of 8965400521 is 1250045698.

It is not a de Polignac number, because 8965400521 - 2⁹ = 8965400009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8965400527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213180 + ... + 251746.

It is an arithmetic number, because the mean of its divisors is an integer number (698852160).

Almost surely, 2^8965400521 is an apocalyptic number.

It is an amenable number.

8965400521 is a deficient number, since it is larger than the sum of its proper divisors (2216234039).

8965400521 is a wasteful number, since it uses less digits than its factorization.

8965400521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41604.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 8965400521 is about 94685.7989404958. The cubic root of 8965400521 is about 2077.4148511766.

The spelling of 8965400521 in words is "eight billion, nine hundred sixty-five million, four hundred thousand, five hundred twenty-one".