26197715679 has 16 divisors (see below), whose sum is σ = 36772778880. Its totient is φ = 16544100960.

The previous prime is 26197715669. The next prime is 26197715699. The reversal of 26197715679 is 97651779162.

It is not a de Polignac number, because 26197715679 - 2²³ = 26189327071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26197715659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654709 + ... + 693569.

It is an arithmetic number, because the mean of its divisors is an integer number (2298298680).

Almost surely, 2^26197715679 is an apocalyptic number.

26197715679 is a deficient number, since it is larger than the sum of its proper divisors (10575063201).

26197715679 is a wasteful number, since it uses less digits than its factorization.

26197715679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50710.

The product of its digits is 10001880, while the sum is 60.

The spelling of 26197715679 in words is "twenty-six billion, one hundred ninety-seven million, seven hundred fifteen thousand, six hundred seventy-nine".