8521077942 has 48 divisors (see below), whose sum is σ = 20523904128. Its totient is φ = 2537291520.

The previous prime is 8521077937. The next prime is 8521077967. The reversal of 8521077942 is 2497701258.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580083 + ... + 594590.

It is an arithmetic number, because the mean of its divisors is an integer number (427581336).

Almost surely, 2^8521077942 is an apocalyptic number.

8521077942 is an abundant number, since it is smaller than the sum of its proper divisors (12002826186).

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

8521077942 is a wasteful number, since it uses less digits than its factorization.

8521077942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174725 (or 1174722 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 8521077942 is about 92309.6849848379. The cubic root of 8521077942 is about 2042.5130778946.

The spelling of 8521077942 in words is "eight billion, five hundred twenty-one million, seventy-seven thousand, nine hundred forty-two".