908620021872 has 30 divisors (see below), whose sum is σ = 2542874089392. Its totient is φ = 302873340576.

The previous prime is 908620021861. The next prime is 908620021879. The reversal of 908620021872 is 278120026809.

908620021872 is a `hidden beast` number, since 9 + 0 + 8 + 620 + 0 + 2 + 18 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908620021879) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3154930488 + ... + 3154930775.

Almost surely, 2^908620021872 is an apocalyptic number.

It is an amenable number.

908620021872 is an abundant number, since it is smaller than the sum of its proper divisors (1634254067520).

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

908620021872 is a wasteful number, since it uses less digits than its factorization.

908620021872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309861277 (or 6309861268 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 908620021872 in words is "nine hundred eight billion, six hundred twenty million, twenty-one thousand, eight hundred seventy-two".