28387494576 has 150 divisors (see below), whose sum is σ = 95576005140. Its totient is φ = 8110694592.

The previous prime is 28387494547. The next prime is 28387494587. The reversal of 28387494576 is 67549478382.

28387494576 is a `hidden beast` number, since 28 + 38 + 7 + 4 + 9 + 4 + 576 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 160006 + ... + 287013.

Almost surely, 2^28387494576 is an apocalyptic number.

It is an amenable number.

28387494576 is an abundant number, since it is smaller than the sum of its proper divisors (67188510564).

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

28387494576 is a wasteful number, since it uses less digits than its factorization.

28387494576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447053 (or 447031 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 28387494576 in words is "twenty-eight billion, three hundred eighty-seven million, four hundred ninety-four thousand, five hundred seventy-six".