307979772108 has 12 divisors (see below), whose sum is σ = 718619468280. Its totient is φ = 102659924032.

The previous prime is 307979772097. The next prime is 307979772127. The reversal of 307979772108 is 801277979703.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×307979772108² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12832490493 + ... + 12832490516.

It is an arithmetic number, because the mean of its divisors is an integer number (59884955690).

Almost surely, 2^307979772108 is an apocalyptic number.

It is an amenable number.

307979772108 is an abundant number, since it is smaller than the sum of its proper divisors (410639696172).

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

307979772108 is a wasteful number, since it uses less digits than its factorization.

307979772108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25664981016 (or 25664981014 counting only the distinct ones).

The product of its (nonzero) digits is 9335088, while the sum is 60.

The spelling of 307979772108 in words is "three hundred seven billion, nine hundred seventy-nine million, seven hundred seventy-two thousand, one hundred eight".