31555454044 has 6 divisors (see below), whose sum is σ = 55222044584. Its totient is φ = 15777727020.

The previous prime is 31555454041. The next prime is 31555454053. The reversal of 31555454044 is 44045455513.

It is a junction number, because it is equal to n+sod(n) for n = 31555453988 and 31555454006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31555454041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3944431752 + ... + 3944431759.

Almost surely, 2^31555454044 is an apocalyptic number.

It is an amenable number.

31555454044 is a deficient number, since it is larger than the sum of its proper divisors (23666590540).

31555454044 is a wasteful number, since it uses less digits than its factorization.

31555454044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888863515 (or 7888863513 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 31555454044 in words is "thirty-one billion, five hundred fifty-five million, four hundred fifty-four thousand, forty-four".