28714624497972 has 384 divisors, whose sum is σ = 90035057459200. Its totient is φ = 7838986222080.

The previous prime is 28714624497959. The next prime is 28714624497997. The reversal of 28714624497972 is 27979442641782.

28714624497972 is a `hidden beast` number, since 2 + 8 + 7 + 1 + 4 + 62 + 4 + 497 + 9 + 72 = 666.

It is a super-2 number, since 2×28714624497972² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28714624497972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 149871228 + ... + 150062700.

Almost surely, 2^{28714624497972} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28714624497972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45017528729600).

28714624497972 is an abundant number, since it is smaller than the sum of its proper divisors (61320432961228).

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

28714624497972 is a wasteful number, since it uses less digits than its factorization.

28714624497972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191615 (or 191595 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 72.

The spelling of 28714624497972 in words is "twenty-eight trillion, seven hundred fourteen billion, six hundred twenty-four million, four hundred ninety-seven thousand, nine hundred seventy-two".