28807125776 has 40 divisors (see below), whose sum is σ = 65571469824. Its totient is φ = 12086904960.

The previous prime is 28807125769. The next prime is 28807125791. The reversal of 28807125776 is 67752170882.

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, 6292976 + ... + 6297551.

Almost surely, 2^28807125776 is an apocalyptic number.

28807125776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28807125776 is an abundant number, since it is smaller than the sum of its proper divisors (36764344048).

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

28807125776 is a wasteful number, since it uses less digits than its factorization.

28807125776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12590559 (or 12590553 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 53.

The spelling of 28807125776 in words is "twenty-eight billion, eight hundred seven million, one hundred twenty-five thousand, seven hundred seventy-six".