31571472054 has 32 divisors (see below), whose sum is σ = 66471404544. Its totient is φ = 9977179520.

The previous prime is 31571472047. The next prime is 31571472071. The reversal of 31571472054 is 45027417513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996702 + ... + 1027889.

It is an arithmetic number, because the mean of its divisors is an integer number (2077231392).

Almost surely, 2^31571472054 is an apocalyptic number.

31571472054 is an abundant number, since it is smaller than the sum of its proper divisors (34899932490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31571472054 is a wasteful number, since it uses less digits than its factorization.

31571472054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024732.

The product of its (nonzero) digits is 117600, while the sum is 39.

Adding to 31571472054 its reverse (45027417513), we get a palindrome (76598889567).

The spelling of 31571472054 in words is "thirty-one billion, five hundred seventy-one million, four hundred seventy-two thousand, fifty-four".