31703643344 has 20 divisors (see below), whose sum is σ = 61483627296. Its totient is φ = 15836900832.

The previous prime is 31703643337. The next prime is 31703643347. The reversal of 31703643344 is 44334630713.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31703643298 and 31703643307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31703643347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915014 + ... + 949029.

Almost surely, 2^31703643344 is an apocalyptic number.

It is an amenable number.

31703643344 is a deficient number, since it is larger than the sum of its proper divisors (29779983952).

31703643344 is a wasteful number, since it uses less digits than its factorization.

31703643344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865114 (or 1865108 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 38.

The spelling of 31703643344 in words is "thirty-one billion, seven hundred three million, six hundred forty-three thousand, three hundred forty-four".