26779119679 has 4 divisors (see below), whose sum is σ = 28839051976. Its totient is φ = 24719187384.

The previous prime is 26779119607. The next prime is 26779119683. The reversal of 26779119679 is 97691197762.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26779119679 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 26779119679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26779119179) 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, 1029966129 + ... + 1029966154.

It is an arithmetic number, because the mean of its divisors is an integer number (7209762994).

Almost surely, 2^26779119679 is an apocalyptic number.

26779119679 is a deficient number, since it is larger than the sum of its proper divisors (2059932297).

26779119679 is a wasteful number, since it uses less digits than its factorization.

26779119679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059932296.

The product of its digits is 18003384, while the sum is 64.

The spelling of 26779119679 in words is "twenty-six billion, seven hundred seventy-nine million, one hundred nineteen thousand, six hundred seventy-nine".