31924779480 has 160 divisors (see below), whose sum is σ = 117057655440. Its totient is φ = 7739331840.

The previous prime is 31924779479. The next prime is 31924779487. The reversal of 31924779480 is 8497742913.

31924779480 is a `hidden beast` number, since 3 + 1 + 9 + 2 + 477 + 94 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31924779487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 412239 + ... + 483518.

Almost surely, 2^31924779480 is an apocalyptic number.

31924779480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31924779480 is an abundant number, since it is smaller than the sum of its proper divisors (85132875960).

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

31924779480 is a wasteful number, since it uses less digits than its factorization.

31924779480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895791 (or 895778 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 31924779480 in words is "thirty-one billion, nine hundred twenty-four million, seven hundred seventy-nine thousand, four hundred eighty".