31612713047 has 16 divisors (see below), whose sum is σ = 33051110400. Its totient is φ = 30201568320.

The previous prime is 31612712993. The next prime is 31612713049. The reversal of 31612713047 is 74031721613.

It is a cyclic number.

It is not a de Polignac number, because 31612713047 - 2⁶ = 31612712983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31612712998 and 31612713016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31612713049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1809488 + ... + 1826874.

It is an arithmetic number, because the mean of its divisors is an integer number (2065694400).

Almost surely, 2^31612713047 is an apocalyptic number.

31612713047 is a deficient number, since it is larger than the sum of its proper divisors (1438397353).

31612713047 is a wasteful number, since it uses less digits than its factorization.

31612713047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18166.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 31612713047 in words is "thirty-one billion, six hundred twelve million, seven hundred thirteen thousand, forty-seven".