31942634845 has 32 divisors (see below), whose sum is σ = 42205814784. Its totient is φ = 23015361600.

The previous prime is 31942634809. The next prime is 31942634873. The reversal of 31942634845 is 54843624913.

It is not a de Polignac number, because 31942634845 - 2⁹ = 31942634333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2581744 + ... + 2594086.

It is an arithmetic number, because the mean of its divisors is an integer number (1318931712).

Almost surely, 2^31942634845 is an apocalyptic number.

It is an amenable number.

31942634845 is a deficient number, since it is larger than the sum of its proper divisors (10263179939).

31942634845 is a wasteful number, since it uses less digits than its factorization.

31942634845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12793.

The product of its digits is 2488320, while the sum is 49.

The spelling of 31942634845 in words is "thirty-one billion, nine hundred forty-two million, six hundred thirty-four thousand, eight hundred forty-five".