31690334916 has 96 divisors (see below), whose sum is σ = 91571760000. Its totient is φ = 9418788864.

The previous prime is 31690334911. The next prime is 31690334957. The reversal of 31690334916 is 61943309613.

It is not an unprimeable number, because it can be changed into a prime (31690334911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419341 + ... + 489108.

It is an arithmetic number, because the mean of its divisors is an integer number (953872500).

Almost surely, 2^31690334916 is an apocalyptic number.

31690334916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31690334916 is an abundant number, since it is smaller than the sum of its proper divisors (59881425084).

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

31690334916 is a wasteful number, since it uses less digits than its factorization.

31690334916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908498 (or 908490 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The spelling of 31690334916 in words is "thirty-one billion, six hundred ninety million, three hundred thirty-four thousand, nine hundred sixteen".