31406296688 has 80 divisors (see below), whose sum is σ = 66126517632. Its totient is φ = 14364000000.

The previous prime is 31406296583. The next prime is 31406296693. The reversal of 31406296688 is 88669260413.

It is a super-3 number, since 3×31406296688³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11014463 + ... + 11017313.

Almost surely, 2^31406296688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31406296688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33063258816).

31406296688 is an abundant number, since it is smaller than the sum of its proper divisors (34720220944).

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

31406296688 is a wasteful number, since it uses less digits than its factorization.

31406296688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334 (or 3328 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 31406296688 in words is "thirty-one billion, four hundred six million, two hundred ninety-six thousand, six hundred eighty-eight".