31454120564 has 24 divisors (see below), whose sum is σ = 55957843200. Its totient is φ = 15467865984.

The previous prime is 31454120539. The next prime is 31454120693. The reversal of 31454120564 is 46502145413.

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, 138389 + ... + 286460.

It is an arithmetic number, because the mean of its divisors is an integer number (2331576800).

Almost surely, 2^31454120564 is an apocalyptic number.

It is an amenable number.

31454120564 is a deficient number, since it is larger than the sum of its proper divisors (24503722636).

31454120564 is a wasteful number, since it uses less digits than its factorization.

31454120564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425159 (or 425157 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 31454120564 its reverse (46502145413), we get a palindrome (77956265977).

The spelling of 31454120564 in words is "thirty-one billion, four hundred fifty-four million, one hundred twenty thousand, five hundred sixty-four".