28340560776 has 32 divisors (see below), whose sum is σ = 77292439200. Its totient is φ = 8588048640.

The previous prime is 28340560727. The next prime is 28340560817. The reversal of 28340560776 is 67706504382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53675041 + ... + 53675568.

It is an arithmetic number, because the mean of its divisors is an integer number (2415388725).

Almost surely, 2^28340560776 is an apocalyptic number.

It is an amenable number.

28340560776 is an abundant number, since it is smaller than the sum of its proper divisors (48951878424).

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

28340560776 is a wasteful number, since it uses less digits than its factorization.

28340560776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107350629 (or 107350625 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 28340560776 in words is "twenty-eight billion, three hundred forty million, five hundred sixty thousand, seven hundred seventy-six".