31422725744 has 40 divisors (see below), whose sum is σ = 64503090288. Its totient is φ = 14777922560.

The previous prime is 31422725729. The next prime is 31422725753. The reversal of 31422725744 is 44752722413.

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 7 ways as a sum of consecutive naturals, for example, 409979 + ... + 480549.

Almost surely, 2^31422725744 is an apocalyptic number.

31422725744 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31422725744 is an abundant number, since it is smaller than the sum of its proper divisors (33080364544).

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

31422725744 is a wasteful number, since it uses less digits than its factorization.

31422725744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72233 (or 72227 counting only the distinct ones).

The product of its digits is 376320, while the sum is 41.

The spelling of 31422725744 in words is "thirty-one billion, four hundred twenty-two million, seven hundred twenty-five thousand, seven hundred forty-four".