31542411144 has 32 divisors (see below), whose sum is σ = 78864196320. Its totient is φ = 10513047936.

The previous prime is 31542411139. The next prime is 31542411181. The reversal of 31542411144 is 44111424513.

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, 188127 + ... + 313809.

It is an arithmetic number, because the mean of its divisors is an integer number (2464506135).

Almost surely, 2^31542411144 is an apocalyptic number.

It is an amenable number.

31542411144 is an abundant number, since it is smaller than the sum of its proper divisors (47321785176).

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

31542411144 is a wasteful number, since it uses less digits than its factorization.

31542411144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136149 (or 136145 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

Adding to 31542411144 its reverse (44111424513), we get a palindrome (75653835657).

The spelling of 31542411144 in words is "thirty-one billion, five hundred forty-two million, four hundred eleven thousand, one hundred forty-four".