26894794769 has 4 divisors (see below), whose sum is σ = 28064133696. Its totient is φ = 25725455844.

The previous prime is 26894794757. The next prime is 26894794777. The reversal of 26894794769 is 96749749862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26894794769 - 2⁴ = 26894794753 is a prime.

It is a super-2 number, since 2×26894794769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26894794739) 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, 584669429 + ... + 584669474.

It is an arithmetic number, because the mean of its divisors is an integer number (7016033424).

Almost surely, 2^26894794769 is an apocalyptic number.

It is an amenable number.

26894794769 is a deficient number, since it is larger than the sum of its proper divisors (1169338927).

26894794769 is a wasteful number, since it uses less digits than its factorization.

26894794769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169338926.

The product of its digits is 329204736, while the sum is 71.

The spelling of 26894794769 in words is "twenty-six billion, eight hundred ninety-four million, seven hundred ninety-four thousand, seven hundred sixty-nine".