25801480469 has 2 divisors, whose sum is σ = 25801480470. Its totient is φ = 25801480468.

The previous prime is 25801480459. The next prime is 25801480561. The reversal of 25801480469 is 96408410852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22781977969 + 3019502500 = 150937^2 + 54950^2 .

It is a cyclic number.

It is not a de Polignac number, because 25801480469 - 2²⁰ = 25800431893 is a prime.

It is a super-2 number, since 2×25801480469² (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 (25801480459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12900740234 + 12900740235.

It is an arithmetic number, because the mean of its divisors is an integer number (12900740235).

Almost surely, 2^25801480469 is an apocalyptic number.

It is an amenable number.

25801480469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25801480469 is an equidigital number, since it uses as much as digits as its factorization.

25801480469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 25801480469 in words is "twenty-five billion, eight hundred one million, four hundred eighty thousand, four hundred sixty-nine".