25793696379461 has 2 divisors, whose sum is σ = 25793696379462. Its totient is φ = 25793696379460.

The previous prime is 25793696379449. The next prime is 25793696379511. The reversal of 25793696379461 is 16497369639752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16657621890625 + 9136074488836 = 4081375^2 + 3022594^2 .

It is a cyclic number.

It is not a de Polignac number, because 25793696379461 - 2³⁰ = 25792622637637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25793696379361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12896848189730 + 12896848189731.

It is an arithmetic number, because the mean of its divisors is an integer number (12896848189731).

Almost surely, 2^{25793696379461} is an apocalyptic number.

It is an amenable number.

25793696379461 is a deficient number, since it is larger than the sum of its proper divisors (1).

25793696379461 is an equidigital number, since it uses as much as digits as its factorization.

25793696379461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2777664960, while the sum is 77.

The spelling of 25793696379461 in words is "twenty-five trillion, seven hundred ninety-three billion, six hundred ninety-six million, three hundred seventy-nine thousand, four hundred sixty-one".