25761407263 has 2 divisors, whose sum is σ = 25761407264. Its totient is φ = 25761407262.

The previous prime is 25761407257. The next prime is 25761407291. The reversal of 25761407263 is 36270416752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25761407263 - 2²¹ = 25759310111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25761407293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12880703631 + 12880703632.

It is an arithmetic number, because the mean of its divisors is an integer number (12880703632).

Almost surely, 2^25761407263 is an apocalyptic number.

25761407263 is a deficient number, since it is larger than the sum of its proper divisors (1).

25761407263 is an equidigital number, since it uses as much as digits as its factorization.

25761407263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 25761407263 in words is "twenty-five billion, seven hundred sixty-one million, four hundred seven thousand, two hundred sixty-three".