31845324842 has 32 divisors (see below), whose sum is σ = 49119955200. Its totient is φ = 15479735040.

The previous prime is 31845324829. The next prime is 31845324883. The reversal of 31845324842 is 24842354813.

It is a junction number, because it is equal to n+sod(n) for n = 31845324793 and 31845324802.

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, 3188168 + ... + 3198140.

It is an arithmetic number, because the mean of its divisors is an integer number (1534998600).

Almost surely, 2^31845324842 is an apocalyptic number.

31845324842 is a deficient number, since it is larger than the sum of its proper divisors (17274630358).

31845324842 is a wasteful number, since it uses less digits than its factorization.

31845324842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10358.

The product of its digits is 737280, while the sum is 44.

The spelling of 31845324842 in words is "thirty-one billion, eight hundred forty-five million, three hundred twenty-four thousand, eight hundred forty-two".