28851887400084 has 144 divisors (see below), whose sum is σ = 86446374117376. Its totient is φ = 7939671969600.

The previous prime is 28851887400059. The next prime is 28851887400109. The reversal of 28851887400084 is 48000478815882.

28851887400084 is a `hidden beast` number, since 28 + 8 + 51 + 8 + 87 + 400 + 0 + 84 = 666.

It is an interprime number because it is at equal distance from previous prime (28851887400059) and next prime (28851887400109).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 28851887399994 and 28851887400030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7103512 + ... + 10400175.

Almost surely, 2^{28851887400084} is an apocalyptic number.

It is an amenable number.

28851887400084 is an abundant number, since it is smaller than the sum of its proper divisors (57594486717292).

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

28851887400084 is a wasteful number, since it uses less digits than its factorization.

28851887400084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503946 (or 17503941 counting only the distinct ones).

The product of its (nonzero) digits is 36700160, while the sum is 63.

The spelling of 28851887400084 in words is "twenty-eight trillion, eight hundred fifty-one billion, eight hundred eighty-seven million, four hundred thousand, eighty-four".