28107523000 has 64 divisors (see below), whose sum is σ = 65800706400. Its totient is φ = 11238035200.

The previous prime is 28107522979. The next prime is 28107523001. The reversal of 28107523000 is 32570182.

It is a self number, because there is not a number n which added to its sum of digits gives 28107523000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28107523001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2964267 + ... + 2973733.

Almost surely, 2^28107523000 is an apocalyptic number.

28107523000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28107523000 is an abundant number, since it is smaller than the sum of its proper divisors (37693183400).

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

28107523000 is a wasteful number, since it uses less digits than its factorization.

28107523000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457 (or 12443 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 28107523000 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-three thousand".