31803465208 has 16 divisors (see below), whose sum is σ = 59633457480. Its totient is φ = 15901209888.

The previous prime is 31803465163. The next prime is 31803465209. The reversal of 31803465208 is 80256430813.

It is a super-2 number, since 2×31803465208² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31803465209) 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, 344335 + ... + 426817.

Almost surely, 2^31803465208 is an apocalyptic number.

It is an amenable number.

31803465208 is a deficient number, since it is larger than the sum of its proper divisors (27829992272).

31803465208 is a wasteful number, since it uses less digits than its factorization.

31803465208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130686 (or 130682 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 31803465208 in words is "thirty-one billion, eight hundred three million, four hundred sixty-five thousand, two hundred eight".