26716979895 has 16 divisors (see below), whose sum is σ = 42831162720. Its totient is φ = 14221057664.

The previous prime is 26716979893. The next prime is 26716979911. The reversal of 26716979895 is 59897961762.

It is a cyclic number.

It is not a de Polignac number, because 26716979895 - 2¹ = 26716979893 is a prime.

It is a super-2 number, since 2×26716979895² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26716979893) 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, 1742004 + ... + 1757273.

It is an arithmetic number, because the mean of its divisors is an integer number (2676947670).

Almost surely, 2^26716979895 is an apocalyptic number.

26716979895 is a deficient number, since it is larger than the sum of its proper divisors (16114182825).

26716979895 is a wasteful number, since it uses less digits than its factorization.

26716979895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499794.

The product of its digits is 102876480, while the sum is 69.

The spelling of 26716979895 in words is "twenty-six billion, seven hundred sixteen million, nine hundred seventy-nine thousand, eight hundred ninety-five".