26894794757 has 2 divisors, whose sum is σ = 26894794758. Its totient is φ = 26894794756.

The previous prime is 26894794753. The next prime is 26894794777. The reversal of 26894794757 is 75749749862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25177438276 + 1717356481 = 158674^2 + 41441^2 .

It is a cyclic number.

It is not a de Polignac number, because 26894794757 - 2² = 26894794753 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26894794753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13447397378 + 13447397379.

It is an arithmetic number, because the mean of its divisors is an integer number (13447397379).

Almost surely, 2^26894794757 is an apocalyptic number.

It is an amenable number.

26894794757 is a deficient number, since it is larger than the sum of its proper divisors (1).

26894794757 is an equidigital number, since it uses as much as digits as its factorization.

26894794757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 213373440, while the sum is 68.

The spelling of 26894794757 in words is "twenty-six billion, eight hundred ninety-four million, seven hundred ninety-four thousand, seven hundred fifty-seven".