28112458125 has 20 divisors (see below), whose sum is σ = 46839106688. Its totient is φ = 14993310000.

The previous prime is 28112458123. The next prime is 28112458141. The reversal of 28112458125 is 52185421182.

It is not a de Polignac number, because 28112458125 - 2¹ = 28112458123 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112458123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7494781 + ... + 7498530.

Almost surely, 2^28112458125 is an apocalyptic number.

28112458125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28112458125 is a deficient number, since it is larger than the sum of its proper divisors (18726648563).

28112458125 is an equidigital number, since it uses as much as digits as its factorization.

28112458125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14993334 (or 14993319 counting only the distinct ones).

The product of its digits is 51200, while the sum is 39.

The spelling of 28112458125 in words is "twenty-eight billion, one hundred twelve million, four hundred fifty-eight thousand, one hundred twenty-five".