31610663745 has 16 divisors (see below), whose sum is σ = 51753273792. Its totient is φ = 16466950080.

The previous prime is 31610663729. The next prime is 31610663767. The reversal of 31610663745 is 54736601613.

It is not a de Polignac number, because 31610663745 - 2⁴ = 31610663729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31610663697 and 31610663706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24503746 + ... + 24505035.

It is an arithmetic number, because the mean of its divisors is an integer number (3234579612).

Almost surely, 2^31610663745 is an apocalyptic number.

It is an amenable number.

31610663745 is a deficient number, since it is larger than the sum of its proper divisors (20142610047).

31610663745 is a wasteful number, since it uses less digits than its factorization.

31610663745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49008832.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 31610663745 in words is "thirty-one billion, six hundred ten million, six hundred sixty-three thousand, seven hundred forty-five".