8779198572 has 36 divisors (see below), whose sum is σ = 22241997960. Its totient is φ = 2919788352.

The previous prime is 8779198559. The next prime is 8779198579. The reversal of 8779198572 is 2758919778.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (8779198579) 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, 259297 + ... + 291192.

Almost surely, 2^8779198572 is an apocalyptic number.

It is an amenable number.

8779198572 is an abundant number, since it is smaller than the sum of its proper divisors (13462799388).

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

8779198572 is a wasteful number, since it uses less digits than its factorization.

8779198572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550942 (or 550937 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 63.

The square root of 8779198572 is about 93697.3776153847. The cubic root of 8779198572 is about 2062.9322125828.

The spelling of 8779198572 in words is "eight billion, seven hundred seventy-nine million, one hundred ninety-eight thousand, five hundred seventy-two".