28597323542880 has 96 divisors (see below), whose sum is σ = 90112776009984. Its totient is φ = 7623311095296.

The previous prime is 28597323542849. The next prime is 28597323542911. The reversal of 28597323542880 is 8824532379582.

It is an interprime number because it is at equal distance from previous prime (28597323542849) and next prime (28597323542911).

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8932522 + ... + 11704041.

It is an arithmetic number, because the mean of its divisors is an integer number (938674750104).

Almost surely, 2^{28597323542880} is an apocalyptic number.

28597323542880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28597323542880 is an abundant number, since it is smaller than the sum of its proper divisors (61515452467104).

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

28597323542880 is a wasteful number, since it uses less digits than its factorization.

28597323542880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20639468 (or 20639460 counting only the distinct ones).

The product of its (nonzero) digits is 232243200, while the sum is 66.

The spelling of 28597323542880 in words is "twenty-eight trillion, five hundred ninety-seven billion, three hundred twenty-three million, five hundred forty-two thousand, eight hundred eighty".