31516622434 has 24 divisors (see below), whose sum is σ = 52084093824. Its totient is φ = 14292451800.

The previous prime is 31516622429. The next prime is 31516622453. The reversal of 31516622434 is 43422661513.

It is a junction number, because it is equal to n+sod(n) for n = 31516622393 and 31516622402.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 46782 + ... + 255385.

It is an arithmetic number, because the mean of its divisors is an integer number (2170170576).

Almost surely, 2^31516622434 is an apocalyptic number.

31516622434 is a deficient number, since it is larger than the sum of its proper divisors (20567471390).

31516622434 is a wasteful number, since it uses less digits than its factorization.

31516622434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302622 (or 302611 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The spelling of 31516622434 in words is "thirty-one billion, five hundred sixteen million, six hundred twenty-two thousand, four hundred thirty-four".