28760987904 has 72 divisors (see below), whose sum is σ = 83504938272. Its totient is φ = 8715448320.

The previous prime is 28760987881. The next prime is 28760987909. The reversal of 28760987904 is 40978906782.

It is not an unprimeable number, because it can be changed into a prime (28760987909) 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, 1693789 + ... + 1710684.

Almost surely, 2^28760987904 is an apocalyptic number.

28760987904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28760987904 is an abundant number, since it is smaller than the sum of its proper divisors (54743950368).

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

28760987904 is a wasteful number, since it uses less digits than its factorization.

28760987904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404503 (or 3404489 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 28760987904 in words is "twenty-eight billion, seven hundred sixty million, nine hundred eighty-seven thousand, nine hundred four".