11926306979 has 4 divisors (see below), whose sum is σ = 11926960584. Its totient is φ = 11925653376.

The previous prime is 11926306933. The next prime is 11926306981. The reversal of 11926306979 is 97960362911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97960362911 = 773 ⋅126727507.

It is a cyclic number.

It is not a de Polignac number, because 11926306979 - 2²⁸ = 11657871523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11926306979.

It is not an unprimeable number, because it can be changed into a prime (11926306999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298622 + ... + 336195.

It is an arithmetic number, because the mean of its divisors is an integer number (2981740146).

Almost surely, 2^11926306979 is an apocalyptic number.

11926306979 is a deficient number, since it is larger than the sum of its proper divisors (653605).

11926306979 is an equidigital number, since it uses as much as digits as its factorization.

11926306979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653604.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 11926306979 in words is "eleven billion, nine hundred twenty-six million, three hundred six thousand, nine hundred seventy-nine".