25760879009 has 4 divisors (see below), whose sum is σ = 25963720704. Its totient is φ = 25558037316.

The previous prime is 25760878993. The next prime is 25760879021. The reversal of 25760879009 is 90097806752.

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 25760879009 - 2⁴ = 25760878993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25760879029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101420657 + ... + 101420910.

It is an arithmetic number, because the mean of its divisors is an integer number (6490930176).

Almost surely, 2^25760879009 is an apocalyptic number.

It is an amenable number.

25760879009 is a deficient number, since it is larger than the sum of its proper divisors (202841695).

25760879009 is a wasteful number, since it uses less digits than its factorization.

25760879009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202841694.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 25760879009 in words is "twenty-five billion, seven hundred sixty million, eight hundred seventy-nine thousand, nine".