28537190841888 has 60 divisors (see below), whose sum is σ = 83927085573870. Its totient is φ = 9512396946432.

The previous prime is 28537190841871. The next prime is 28537190841893. The reversal of 28537190841888 is 88814809173582.

28537190841888 is a `hidden beast` number, since 2 + 8 + 5 + 371 + 90 + 84 + 18 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15326379371664 + 13210811470224 = 3914892^2 + 3634668^2 .

It is a super-2 number, since 2×28537190841888² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5504856753 + ... + 5504861936.

Almost surely, 2^{28537190841888} is an apocalyptic number.

It is an amenable number.

28537190841888 is an abundant number, since it is smaller than the sum of its proper divisors (55389894731982).

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

28537190841888 is a wasteful number, since it uses less digits than its factorization.

28537190841888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009718711 (or 11009718694 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 72.

The spelling of 28537190841888 in words is "twenty-eight trillion, five hundred thirty-seven billion, one hundred ninety million, eight hundred forty-one thousand, eight hundred eighty-eight".