28297940676 has 24 divisors (see below), whose sum is σ = 68158481664. Its totient is φ = 9128367840.

The previous prime is 28297940651. The next prime is 28297940729. The reversal of 28297940676 is 67604979282.

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, 38034495 + ... + 38035238.

It is an arithmetic number, because the mean of its divisors is an integer number (2839936736).

Almost surely, 2^28297940676 is an apocalyptic number.

It is an amenable number.

28297940676 is an abundant number, since it is smaller than the sum of its proper divisors (39860540988).

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

28297940676 is a wasteful number, since it uses less digits than its factorization.

28297940676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76069771 (or 76069769 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The spelling of 28297940676 in words is "twenty-eight billion, two hundred ninety-seven million, nine hundred forty thousand, six hundred seventy-six".