31346535642 has 64 divisors (see below), whose sum is σ = 68134017024. Its totient is φ = 9587350080.

The previous prime is 31346535629. The next prime is 31346535653. The reversal of 31346535642 is 24653564313.

It is a junction number, because it is equal to n+sod(n) for n = 31346535594 and 31346535603.

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, 319293 + ... + 405759.

It is an arithmetic number, because the mean of its divisors is an integer number (1064594016).

Almost surely, 2^31346535642 is an apocalyptic number.

31346535642 is an abundant number, since it is smaller than the sum of its proper divisors (36787481382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31346535642 is a wasteful number, since it uses less digits than its factorization.

31346535642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86603.

The product of its digits is 777600, while the sum is 42.

The spelling of 31346535642 in words is "thirty-one billion, three hundred forty-six million, five hundred thirty-five thousand, six hundred forty-two".