1979371331136 has 42 divisors (see below), whose sum is σ = 5673510535862. Its totient is φ = 659790443520.

The previous prime is 1979371331083. The next prime is 1979371331149. The reversal of 1979371331136 is 6311331739791.

1979371331136 is a `hidden beast` number, since 1 + 97 + 93 + 7 + 1 + 331 + 136 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1873460137536 + 105911193600 = 1368744^2 + 325440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1718203705 + ... + 1718204856.

Almost surely, 2^{1979371331136} is an apocalyptic number.

1979371331136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1979371331136 is an abundant number, since it is smaller than the sum of its proper divisors (3694139204726).

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

1979371331136 is a wasteful number, since it uses less digits than its factorization.

1979371331136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436408579 (or 3436408566 counting only the distinct ones).

The product of its digits is 1928934, while the sum is 54.

The spelling of 1979371331136 in words is "one trillion, nine hundred seventy-nine billion, three hundred seventy-one million, three hundred thirty-one thousand, one hundred thirty-six".