31783055854 has 16 divisors (see below), whose sum is σ = 52741155456. Its totient is φ = 14243366200.

The previous prime is 31783055807. The next prime is 31783055869. The reversal of 31783055854 is 45855038713.

It is a junction number, because it is equal to n+sod(n) for n = 31783055798 and 31783055807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10172272 + ... + 10175395.

It is an arithmetic number, because the mean of its divisors is an integer number (3296322216).

Almost surely, 2^31783055854 is an apocalyptic number.

31783055854 is a deficient number, since it is larger than the sum of its proper divisors (20958099602).

31783055854 is a wasteful number, since it uses less digits than its factorization.

31783055854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20347751.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 31783055854 in words is "thirty-one billion, seven hundred eighty-three million, fifty-five thousand, eight hundred fifty-four".