31363705438 has 16 divisors (see below), whose sum is σ = 50805588960. Its totient is φ = 14435230176.

The previous prime is 31363705421. The next prime is 31363705447. The reversal of 31363705438 is 83450736313.

It is a junction number, because it is equal to n+sod(n) for n = 31363705394 and 31363705403.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1670745 + ... + 1689412.

It is an arithmetic number, because the mean of its divisors is an integer number (3175349310).

Almost surely, 2^31363705438 is an apocalyptic number.

31363705438 is a deficient number, since it is larger than the sum of its proper divisors (19441883522).

31363705438 is a wasteful number, since it uses less digits than its factorization.

31363705438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360531.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 31363705438 in words is "thirty-one billion, three hundred sixty-three million, seven hundred five thousand, four hundred thirty-eight".