31617746112 has 28 divisors (see below), whose sum is σ = 83655287096. Its totient is φ = 10539248640.

The previous prime is 31617746101. The next prime is 31617746113. The reversal of 31617746112 is 21164771613.

It is a happy number.

It is a super-2 number, since 2×31617746112² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31617746113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82337689 + ... + 82338072.

Almost surely, 2^31617746112 is an apocalyptic number.

31617746112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31617746112 is an abundant number, since it is smaller than the sum of its proper divisors (52037540984).

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

31617746112 is a wasteful number, since it uses less digits than its factorization.

31617746112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164675776 (or 164675766 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The spelling of 31617746112 in words is "thirty-one billion, six hundred seventeen million, seven hundred forty-six thousand, one hundred twelve".