12170776908 has 18 divisors (see below), whose sum is σ = 28399371196. Its totient is φ = 4056798248.

The previous prime is 12170776907. The next prime is 12170776939. The reversal of 12170776908 is 80967707121.

It is not an unprimeable number, because it can be changed into a prime (12170776907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 366241 + ... + 398087.

Almost surely, 2^12170776908 is an apocalyptic number.

It is an amenable number.

12170776908 is an abundant number, since it is smaller than the sum of its proper divisors (16228594288).

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

12170776908 is an frugal number, since it uses more digits than its factorization.

12170776908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63701 (or 31852 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 48.

Multiplying 12170776908 by its sum of digits (48), we get a square (584197291584 = 764328²).

The spelling of 12170776908 in words is "twelve billion, one hundred seventy million, seven hundred seventy-six thousand, nine hundred eight".