8799779916 has 36 divisors (see below), whose sum is σ = 22252230000. Its totient is φ = 2932159968.

The previous prime is 8799779843. The next prime is 8799779917. The reversal of 8799779916 is 6199779978.

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

It is a super-2 number, since 2×8799779916² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8799779917) 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, 54505 + ... + 143423.

It is an arithmetic number, because the mean of its divisors is an integer number (618117500).

Almost surely, 2^8799779916 is an apocalyptic number.

It is an amenable number.

8799779916 is an abundant number, since it is smaller than the sum of its proper divisors (13452450084).

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

8799779916 is a wasteful number, since it uses less digits than its factorization.

8799779916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91678 (or 91673 counting only the distinct ones).

The product of its digits is 108020304, while the sum is 72.

The square root of 8799779916 is about 93807.1421374727. The cubic root of 8799779916 is about 2064.5430195316.

The spelling of 8799779916 in words is "eight billion, seven hundred ninety-nine million, seven hundred seventy-nine thousand, nine hundred sixteen".