31214869056 has 504 divisors, whose sum is σ = 111961732896. Its totient is φ = 8260116480.

The previous prime is 31214868973. The next prime is 31214869057. The reversal of 31214869056 is 65096841213.

31214869056 is a `hidden beast` number, since 31 + 2 + 1 + 486 + 90 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a super-2 number, since 2×31214869056² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214869057) 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 71 ways as a sum of consecutive naturals, for example, 32146651 + ... + 32147621.

Almost surely, 2^31214869056 is an apocalyptic number.

31214869056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31214869056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55980866448).

31214869056 is an abundant number, since it is smaller than the sum of its proper divisors (80746863840).

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

31214869056 is a wasteful number, since it uses less digits than its factorization.

31214869056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 31214869056 in words is "thirty-one billion, two hundred fourteen million, eight hundred sixty-nine thousand, fifty-six".