31401105618864 has 40 divisors (see below), whose sum is σ = 82330262004160. Its totient is φ = 10310810799168.

The previous prime is 31401105618859. The next prime is 31401105618877. The reversal of 31401105618864 is 46881650110413.

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

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, 4882009474 + ... + 4882015905.

It is an arithmetic number, because the mean of its divisors is an integer number (2058256550104).

Almost surely, 2^{31401105618864} is an apocalyptic number.

It is an amenable number.

31401105618864 is an abundant number, since it is smaller than the sum of its proper divisors (50929156385296).

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

31401105618864 is a wasteful number, since it uses less digits than its factorization.

31401105618864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764025457 (or 9764025451 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 31401105618864 in words is "thirty-one trillion, four hundred one billion, one hundred five million, six hundred eighteen thousand, eight hundred sixty-four".