25798270269 has 8 divisors (see below), whose sum is σ = 34446212320. Its totient is φ = 17174587536.

The previous prime is 25798270261. The next prime is 25798270273. The reversal of 25798270269 is 96207289752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25798270269 - 2³ = 25798270261 is a prime.

It is a super-2 number, since 2×25798270269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25798270261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6062347 + ... + 6066600.

It is an arithmetic number, because the mean of its divisors is an integer number (4305776540).

Almost surely, 2^25798270269 is an apocalyptic number.

It is an amenable number.

25798270269 is a deficient number, since it is larger than the sum of its proper divisors (8647942051).

25798270269 is a wasteful number, since it uses less digits than its factorization.

25798270269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12129659.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 25798270269 in words is "twenty-five billion, seven hundred ninety-eight million, two hundred seventy thousand, two hundred sixty-nine".