31428253932 has 48 divisors (see below), whose sum is σ = 77703494400. Its totient is φ = 9858974400.

The previous prime is 31428253861. The next prime is 31428253943. The reversal of 31428253932 is 23935282413.

It is a happy 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, 422007 + ... + 490862.

It is an arithmetic number, because the mean of its divisors is an integer number (1618822800).

Almost surely, 2^31428253932 is an apocalyptic number.

It is an amenable number.

31428253932 is an abundant number, since it is smaller than the sum of its proper divisors (46275240468).

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

31428253932 is a wasteful number, since it uses less digits than its factorization.

31428253932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913046 (or 913044 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The spelling of 31428253932 in words is "thirty-one billion, four hundred twenty-eight million, two hundred fifty-three thousand, nine hundred thirty-two".