28377692808 has 64 divisors (see below), whose sum is σ = 71209324800. Its totient is φ = 9423951360.

The previous prime is 28377692789. The next prime is 28377692923. The reversal of 28377692808 is 80829677382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10825738 + ... + 10828358.

It is an arithmetic number, because the mean of its divisors is an integer number (1112645700).

Almost surely, 2^28377692808 is an apocalyptic number.

It is an amenable number.

28377692808 is an abundant number, since it is smaller than the sum of its proper divisors (42831631992).

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

28377692808 is a wasteful number, since it uses less digits than its factorization.

28377692808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142 (or 4138 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 28377692808 in words is "twenty-eight billion, three hundred seventy-seven million, six hundred ninety-two thousand, eight hundred eight".