8520579942 has 16 divisors (see below), whose sum is σ = 19475611392. Its totient is φ = 2434451400.

The previous prime is 8520579883. The next prime is 8520579953. The reversal of 8520579942 is 2499750258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101435434 + ... + 101435517.

It is an arithmetic number, because the mean of its divisors is an integer number (1217225712).

Almost surely, 2^8520579942 is an apocalyptic number.

8520579942 is an abundant number, since it is smaller than the sum of its proper divisors (10955031450).

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

8520579942 is a wasteful number, since it uses less digits than its factorization.

8520579942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202870963.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 8520579942 is about 92306.9875036554. The cubic root of 8520579942 is about 2042.4732867110.

The spelling of 8520579942 in words is "eight billion, five hundred twenty million, five hundred seventy-nine thousand, nine hundred forty-two".