28887188716 has 12 divisors (see below), whose sum is σ = 50554494760. Its totient is φ = 14443047360.

The previous prime is 28887188713. The next prime is 28887188719. The reversal of 28887188716 is 61788178882.

It is an interprime number because it is at equal distance from previous prime (28887188713) and next prime (28887188719).

It is not an unprimeable number, because it can be changed into a prime (28887188713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501 + ... + 240388.

Almost surely, 2^28887188716 is an apocalyptic number.

It is an amenable number.

28887188716 is a deficient number, since it is larger than the sum of its proper divisors (21667306044).

28887188716 is a wasteful number, since it uses less digits than its factorization.

28887188716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273504 (or 273502 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 64.

The spelling of 28887188716 in words is "twenty-eight billion, eight hundred eighty-seven million, one hundred eighty-eight thousand, seven hundred sixteen".