31406253144 has 64 divisors (see below), whose sum is σ = 91641369600. Its totient is φ = 8782293504.

The previous prime is 31406253119. The next prime is 31406253181. The reversal of 31406253144 is 44135260413.

It is a happy number.

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, 1980849 + ... + 1996640.

It is an arithmetic number, because the mean of its divisors is an integer number (1431896400).

Almost surely, 2^31406253144 is an apocalyptic number.

It is an amenable number.

31406253144 is an abundant number, since it is smaller than the sum of its proper divisors (60235116456).

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

31406253144 is a wasteful number, since it uses less digits than its factorization.

31406253144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977552 (or 3977548 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 31406253144 in words is "thirty-one billion, four hundred six million, two hundred fifty-three thousand, one hundred forty-four".