28860511776 has 72 divisors (see below), whose sum is σ = 79956105264. Its totient is φ = 9113834880.

The previous prime is 28860511739. The next prime is 28860511787. The reversal of 28860511776 is 67711506882.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 381730 + ... + 451041.

It is an arithmetic number, because the mean of its divisors is an integer number (1110501462).

Almost surely, 2^28860511776 is an apocalyptic number.

It is an amenable number.

28860511776 is an abundant number, since it is smaller than the sum of its proper divisors (51095593488).

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

28860511776 is a wasteful number, since it uses less digits than its factorization.

28860511776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832822 (or 832795 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 28860511776 in words is "twenty-eight billion, eight hundred sixty million, five hundred eleven thousand, seven hundred seventy-six".