28190459249712 has 30 divisors (see below), whose sum is σ = 78894132483972. Its totient is φ = 9396819749856.

The previous prime is 28190459249629. The next prime is 28190459249723. The reversal of 28190459249712 is 21794295409182.

28190459249712 is a `hidden beast` number, since 2 + 8 + 1 + 9 + 0 + 45 + 92 + 497 + 12 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28190459249712.

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, 97883538918 + ... + 97883539205.

Almost surely, 2^{28190459249712} is an apocalyptic number.

It is an amenable number.

28190459249712 is an abundant number, since it is smaller than the sum of its proper divisors (50703673234260).

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

28190459249712 is a wasteful number, since it uses less digits than its factorization.

28190459249712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195767078137 (or 195767078128 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 28190459249712 in words is "twenty-eight trillion, one hundred ninety billion, four hundred fifty-nine million, two hundred forty-nine thousand, seven hundred twelve".