26689768353 has 20 divisors (see below), whose sum is σ = 41603377728. Its totient is φ = 17019561240.

The previous prime is 26689768283. The next prime is 26689768363. The reversal of 26689768353 is 35386798662.

It is not a de Polignac number, because 26689768353 - 2⁸ = 26689768097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26689768363) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7161253 + ... + 7164978.

Almost surely, 2^26689768353 is an apocalyptic number.

26689768353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

26689768353 is a deficient number, since it is larger than the sum of its proper divisors (14913609375).

26689768353 is a wasteful number, since it uses less digits than its factorization.

26689768353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14326266 (or 14326257 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 26689768353 in words is "twenty-six billion, six hundred eighty-nine million, seven hundred sixty-eight thousand, three hundred fifty-three".