28687160832 has 80 divisors (see below), whose sum is σ = 83372110272. Its totient is φ = 8693073920.

The previous prime is 28687160797. The next prime is 28687160839. The reversal of 28687160832 is 23806178682.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28687160839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832038 + ... + 865829.

Almost surely, 2^28687160832 is an apocalyptic number.

28687160832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28687160832 is an abundant number, since it is smaller than the sum of its proper divisors (54684949440).

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

28687160832 is a wasteful number, since it uses less digits than its factorization.

28687160832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697899 (or 1697883 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 28687160832 in words is "twenty-eight billion, six hundred eighty-seven million, one hundred sixty thousand, eight hundred thirty-two".