2131377437979 has 12 divisors (see below), whose sum is σ = 3084047999032. Its totient is φ = 1418429815200.

The previous prime is 2131377437951. The next prime is 2131377438023. The reversal of 2131377437979 is 9797347731312.

2131377437979 is a `hidden beast` number, since 2 + 131 + 377 + 43 + 7 + 97 + 9 = 666.

It is not a de Polignac number, because 2131377437979 - 2¹⁷ = 2131377306907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131377433979) 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, 207367642 + ... + 207377919.

Almost surely, 2^{2131377437979} is an apocalyptic number.

2131377437979 is a deficient number, since it is larger than the sum of its proper divisors (952670561053).

2131377437979 is a wasteful number, since it uses less digits than its factorization.

2131377437979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414746138 (or 414746135 counting only the distinct ones).

The product of its digits is 42007896, while the sum is 63.

The spelling of 2131377437979 in words is "two trillion, one hundred thirty-one billion, three hundred seventy-seven million, four hundred thirty-seven thousand, nine hundred seventy-nine".