31552551456 has 96 divisors (see below), whose sum is σ = 83347584768. Its totient is φ = 10451435520.

The previous prime is 31552551397. The next prime is 31552551479. The reversal of 31552551456 is 65415525513.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11459776 + ... + 11462528.

It is an arithmetic number, because the mean of its divisors is an integer number (868204008).

Almost surely, 2^31552551456 is an apocalyptic number.

It is an amenable number.

31552551456 is an abundant number, since it is smaller than the sum of its proper divisors (51795033312).

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

31552551456 is a wasteful number, since it uses less digits than its factorization.

31552551456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474 (or 3466 counting only the distinct ones).

The product of its digits is 450000, while the sum is 42.

The spelling of 31552551456 in words is "thirty-one billion, five hundred fifty-two million, five hundred fifty-one thousand, four hundred fifty-six".