126776379213 has 24 divisors (see below), whose sum is σ = 199793337120. Its totient is φ = 76824747360.

The previous prime is 126776379193. The next prime is 126776379253. The reversal of 126776379213 is 312973677621.

126776379213 is a `hidden beast` number, since 1 + 267 + 7 + 6 + 379 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 126776379213 - 2⁵ = 126776379181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126776379213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126776379253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780070 + ... + 928472.

It is an arithmetic number, because the mean of its divisors is an integer number (8324722380).

Almost surely, 2^126776379213 is an apocalyptic number.

It is an amenable number.

126776379213 is a deficient number, since it is larger than the sum of its proper divisors (73016957907).

126776379213 is a wasteful number, since it uses less digits than its factorization.

126776379213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157049 (or 157046 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The spelling of 126776379213 in words is "one hundred twenty-six billion, seven hundred seventy-six million, three hundred seventy-nine thousand, two hundred thirteen".