28887317300 has 18 divisors (see below), whose sum is σ = 62685478758. Its totient is φ = 11554926880.

The previous prime is 28887317297. The next prime is 28887317317. The reversal of 28887317300 is 371378882.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 60031504 + 28827285796 = 7748^2 + 169786^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144436487 + ... + 144436686.

Almost surely, 2^28887317300 is an apocalyptic number.

28887317300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28887317300 is an abundant number, since it is smaller than the sum of its proper divisors (33798161458).

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

28887317300 is a wasteful number, since it uses less digits than its factorization.

28887317300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288873187 (or 288873180 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 28887317300 in words is "twenty-eight billion, eight hundred eighty-seven million, three hundred seventeen thousand, three hundred".