31275474630892 has 24 divisors (see below), whose sum is σ = 56070994723632. Its totient is φ = 15255244646400.

The previous prime is 31275474630853. The next prime is 31275474630893. The reversal of 31275474630892 is 29803647457213.

It is a self number, because there is not a number n which added to its sum of digits gives 31275474630892.

It is not an unprimeable number, because it can be changed into a prime (31275474630893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4461109 + ... + 9080332.

It is an arithmetic number, because the mean of its divisors is an integer number (2336291446818).

It is a 1-persistent number, because it is pandigital, but 2⋅31275474630892 = 62550949261784 is not.

Almost surely, 2^{31275474630892} is an apocalyptic number.

It is an amenable number.

31275474630892 is a deficient number, since it is larger than the sum of its proper divisors (24795520092740).

31275474630892 is a wasteful number, since it uses less digits than its factorization.

31275474630892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13555569 (or 13555567 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 31275474630892 in words is "thirty-one trillion, two hundred seventy-five billion, four hundred seventy-four million, six hundred thirty thousand, eight hundred ninety-two".