11977998059930 has 64 divisors (see below), whose sum is σ = 25059062016000. Its totient is φ = 4036979462208.

The previous prime is 11977998059891. The next prime is 11977998059947. The reversal of 11977998059930 is 3995089977911.

It is a Smith number, since the sum of its digits (77) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164002961 + ... + 164075979.

It is an arithmetic number, because the mean of its divisors is an integer number (391547844000).

Almost surely, 2^{11977998059930} is an apocalyptic number.

11977998059930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11977998059930 is an abundant number, since it is smaller than the sum of its proper divisors (13081063956070).

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

11977998059930 is a wasteful number, since it uses less digits than its factorization.

11977998059930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112811.

The product of its (nonzero) digits is 347208120, while the sum is 77.

The spelling of 11977998059930 in words is "eleven trillion, nine hundred seventy-seven billion, nine hundred ninety-eight million, fifty-nine thousand, nine hundred thirty".