32487990388 has 18 divisors (see below), whose sum is σ = 66136266546. Its totient is φ = 13923424368.

The previous prime is 32487990373. The next prime is 32487990397. The reversal of 32487990388 is 88309978423.

It can be written as a sum of positive squares in only one way, i.e., 32449699044 + 38291344 = 180138^2 + 6188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82877331 + ... + 82877722.

Almost surely, 2^32487990388 is an apocalyptic number.

It is an amenable number.

32487990388 is an abundant number, since it is smaller than the sum of its proper divisors (33648276158).

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

32487990388 is a wasteful number, since it uses less digits than its factorization.

32487990388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165755071 (or 165755062 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 32487990388 in words is "thirty-two billion, four hundred eighty-seven million, nine hundred ninety thousand, three hundred eighty-eight".