28425179808 has 72 divisors (see below), whose sum is σ = 80858887200. Its totient is φ = 9472155264.

The previous prime is 28425179807. The next prime is 28425179819. The reversal of 28425179808 is 80897152482.

28425179808 is a `hidden beast` number, since 2 + 8 + 42 + 517 + 9 + 80 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (28425179801) 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, 1057803 + ... + 1084341.

It is an arithmetic number, because the mean of its divisors is an integer number (1123040100).

Almost surely, 2^28425179808 is an apocalyptic number.

It is an amenable number.

28425179808 is an abundant number, since it is smaller than the sum of its proper divisors (52433707392).

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

28425179808 is a wasteful number, since it uses less digits than its factorization.

28425179808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30274 (or 30263 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 28425179808 in words is "twenty-eight billion, four hundred twenty-five million, one hundred seventy-nine thousand, eight hundred eight".