31402165914 has 128 divisors (see below), whose sum is σ = 82434293760. Its totient is φ = 8671017600.

The previous prime is 31402165871. The next prime is 31402165931. The reversal of 31402165914 is 41956120413.

It is a happy number.

31402165914 is a `hidden beast` number, since 3 + 1 + 40 + 21 + 6 + 591 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12454974 + ... + 12457494.

It is an arithmetic number, because the mean of its divisors is an integer number (644017920).

Almost surely, 2^31402165914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31402165914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41217146880).

31402165914 is an abundant number, since it is smaller than the sum of its proper divisors (51032127846).

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

31402165914 is a wasteful number, since it uses less digits than its factorization.

31402165914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 31402165914 in words is "thirty-one billion, four hundred two million, one hundred sixty-five thousand, nine hundred fourteen".