8722008774 has 72 divisors (see below), whose sum is σ = 19769516760. Its totient is φ = 2850374520.

The previous prime is 8722008739. The next prime is 8722008787. The reversal of 8722008774 is 4778002278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48726217 + ... + 48726395.

Almost surely, 2^8722008774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8722008774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9884758380).

8722008774 is an abundant number, since it is smaller than the sum of its proper divisors (11047507986).

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

8722008774 is an equidigital number, since it uses as much as digits as its factorization.

8722008774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 8722008774 is about 93391.6954230942. The cubic root of 8722008774 is about 2058.4429725853.

The spelling of 8722008774 in words is "eight billion, seven hundred twenty-two million, eight thousand, seven hundred seventy-four".