25913710469 has 2 divisors, whose sum is σ = 25913710470. Its totient is φ = 25913710468.

The previous prime is 25913710463. The next prime is 25913710483. The reversal of 25913710469 is 96401731952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16277932225 + 9635778244 = 127585^2 + 98162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25913710469 is a prime.

It is a super-2 number, since 2×25913710469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25913710463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12956855234 + 12956855235.

It is an arithmetic number, because the mean of its divisors is an integer number (12956855235).

Almost surely, 2^25913710469 is an apocalyptic number.

It is an amenable number.

25913710469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25913710469 is an equidigital number, since it uses as much as digits as its factorization.

25913710469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 25913710469 in words is "twenty-five billion, nine hundred thirteen million, seven hundred ten thousand, four hundred sixty-nine".