28172054592 has 84 divisors (see below), whose sum is σ = 88091046576. Its totient is φ = 8536984320.

The previous prime is 28172054587. The next prime is 28172054593. The reversal of 28172054592 is 29545027182.

28172054592 is a `hidden beast` number, since 2 + 8 + 1 + 7 + 2 + 0 + 54 + 592 = 666.

It is not an unprimeable number, because it can be changed into a prime (28172054593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2216838 + ... + 2229509.

Almost surely, 2^28172054592 is an apocalyptic number.

28172054592 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28172054592 is an abundant number, since it is smaller than the sum of its proper divisors (59918991984).

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

28172054592 is a wasteful number, since it uses less digits than its factorization.

28172054592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446376 (or 4446363 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 28172054592 in words is "twenty-eight billion, one hundred seventy-two million, fifty-four thousand, five hundred ninety-two".