31488405424 has 40 divisors (see below), whose sum is σ = 73394032640. Its totient is φ = 12784765248.

The previous prime is 31488405413. The next prime is 31488405451. The reversal of 31488405424 is 42450488413.

It is a super-2 number, since 2×31488405424² (a number of 22 digits) contains 22 as substring.

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, 7396464 + ... + 7400719.

It is an arithmetic number, because the mean of its divisors is an integer number (1834850816).

Almost surely, 2^31488405424 is an apocalyptic number.

It is an amenable number.

31488405424 is an abundant number, since it is smaller than the sum of its proper divisors (41905627216).

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

31488405424 is a wasteful number, since it uses less digits than its factorization.

31488405424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14797217 (or 14797211 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 43.

The spelling of 31488405424 in words is "thirty-one billion, four hundred eighty-eight million, four hundred five thousand, four hundred twenty-four".