402891564096 has 84 divisors (see below), whose sum is σ = 1319789640832. Its totient is φ = 115111874304.

The previous prime is 402891564091. The next prime is 402891564151. The reversal of 402891564096 is 690465198204.

402891564096 is a `hidden beast` number, since 4 + 0 + 2 + 89 + 156 + 409 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a super-2 number, since 2×402891564096² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402891564091) 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, 49957720 + ... + 49965783.

Almost surely, 2^402891564096 is an apocalyptic number.

It is an amenable number.

402891564096 is an abundant number, since it is smaller than the sum of its proper divisors (916898076736).

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

402891564096 is a wasteful number, since it uses less digits than its factorization.

402891564096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99923528 (or 99923515 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 402891564096 in words is "four hundred two billion, eight hundred ninety-one million, five hundred sixty-four thousand, ninety-six".