31204504554040 has 64 divisors (see below), whose sum is σ = 71214609438720. Its totient is φ = 12304490640000.

The previous prime is 31204504554029. The next prime is 31204504554043. The reversal of 31204504554040 is 4045540540213.

It is a super-2 number, since 2×31204504554040² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204504554043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18927496 + ... + 20509975.

It is an arithmetic number, because the mean of its divisors is an integer number (1112728272480).

Almost surely, 2^{31204504554040} is an apocalyptic number.

It is an amenable number.

31204504554040 is an abundant number, since it is smaller than the sum of its proper divisors (40010104884680).

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

31204504554040 is a wasteful number, since it uses less digits than its factorization.

31204504554040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39437764 (or 39437760 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 31204504554040 in words is "thirty-one trillion, two hundred four billion, five hundred four million, five hundred fifty-four thousand, forty".