31464864310138 has 24 divisors (see below), whose sum is σ = 54903309252372. Its totient is φ = 13484860369344.

The previous prime is 31464864310129. The next prime is 31464864310151. The reversal of 31464864310138 is 83101346846413.

It can be written as a sum of positive squares in 2 ways, for example, as 29516587128889 + 1948277181249 = 5432917^2 + 1395807^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17027256 + ... + 18784492.

Almost surely, 2^{31464864310138} is an apocalyptic number.

31464864310138 is a deficient number, since it is larger than the sum of its proper divisors (23438444942234).

31464864310138 is a wasteful number, since it uses less digits than its factorization.

31464864310138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939966 (or 1939959 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 31464864310138 in words is "thirty-one trillion, four hundred sixty-four billion, eight hundred sixty-four million, three hundred ten thousand, one hundred thirty-eight".