31406644052 has 12 divisors (see below), whose sum is σ = 62813288160. Its totient is φ = 13459990296.

The previous prime is 31406643979. The next prime is 31406644057. The reversal of 31406644052 is 25044660413.

31406644052 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31406644057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560832902 + ... + 560832957.

It is an arithmetic number, because the mean of its divisors is an integer number (5234440680).

Almost surely, 2^31406644052 is an apocalyptic number.

It is an amenable number.

31406644052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31406644052 is a wasteful number, since it uses less digits than its factorization.

31406644052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121665870 (or 1121665868 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 31406644052 in words is "thirty-one billion, four hundred six million, six hundred forty-four thousand, fifty-two".