31162306545 has 24 divisors (see below), whose sum is σ = 55757075712. Its totient is φ = 16083770400.

The previous prime is 31162306523. The next prime is 31162306559. The reversal of 31162306545 is 54560326113.

It is not a de Polignac number, because 31162306545 - 2⁶ = 31162306481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11167891 + ... + 11170680.

It is an arithmetic number, because the mean of its divisors is an integer number (2323211488).

Almost surely, 2^31162306545 is an apocalyptic number.

It is an amenable number.

31162306545 is a deficient number, since it is larger than the sum of its proper divisors (24594769167).

31162306545 is a wasteful number, since it uses less digits than its factorization.

31162306545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22338613 (or 22338610 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 31162306545 in words is "thirty-one billion, one hundred sixty-two million, three hundred six thousand, five hundred forty-five".