31007465740 has 12 divisors (see below), whose sum is σ = 65115678096. Its totient is φ = 12402986288.

The previous prime is 31007465669. The next prime is 31007465743. The reversal of 31007465740 is 4756470013.

It is a super-2 number, since 2×31007465740² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31007465740.

It is not an unprimeable number, because it can be changed into a prime (31007465743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775186624 + ... + 775186663.

It is an arithmetic number, because the mean of its divisors is an integer number (5426306508).

Almost surely, 2^31007465740 is an apocalyptic number.

It is an amenable number.

31007465740 is an abundant number, since it is smaller than the sum of its proper divisors (34108212356).

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

31007465740 is a wasteful number, since it uses less digits than its factorization.

31007465740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550373296 (or 1550373294 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 31007465740 in words is "thirty-one billion, seven million, four hundred sixty-five thousand, seven hundred forty".