28484171172 has 36 divisors (see below), whose sum is σ = 72093215376. Its totient is φ = 9482649840.

The previous prime is 28484171101. The next prime is 28484171173. The reversal of 28484171172 is 27117148482.

28484171172 is a `hidden beast` number, since 28 + 48 + 417 + 1 + 172 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×28484171172² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28484171173) 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, 474354 + ... + 531017.

It is an arithmetic number, because the mean of its divisors is an integer number (2002589316).

Almost surely, 2^28484171172 is an apocalyptic number.

It is an amenable number.

28484171172 is an abundant number, since it is smaller than the sum of its proper divisors (43609044204).

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

28484171172 is a wasteful number, since it uses less digits than its factorization.

28484171172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006168 (or 1006163 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The spelling of 28484171172 in words is "twenty-eight billion, four hundred eighty-four million, one hundred seventy-one thousand, one hundred seventy-two".