25870959469 has 4 divisors (see below), whose sum is σ = 25910946144. Its totient is φ = 25830972796.

The previous prime is 25870959467. The next prime is 25870959523. The reversal of 25870959469 is 96495907852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25870959469 - 2¹ = 25870959467 is a prime.

It is a super-2 number, since 2×25870959469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25870959469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25870959463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19992367 + ... + 19993660.

It is an arithmetic number, because the mean of its divisors is an integer number (6477736536).

Almost surely, 2^25870959469 is an apocalyptic number.

It is an amenable number.

25870959469 is a deficient number, since it is larger than the sum of its proper divisors (39986675).

25870959469 is an equidigital number, since it uses as much as digits as its factorization.

25870959469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39986674.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 25870959469 in words is "twenty-five billion, eight hundred seventy million, nine hundred fifty-nine thousand, four hundred sixty-nine".