25426527679 has 4 divisors (see below), whose sum is σ = 29058888784. Its totient is φ = 21794166576.

The previous prime is 25426527677. The next prime is 25426527689. The reversal of 25426527679 is 97672562452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25426527679 - 2¹ = 25426527677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25426527677) 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, 1816180542 + ... + 1816180555.

It is an arithmetic number, because the mean of its divisors is an integer number (7264722196).

Almost surely, 2^25426527679 is an apocalyptic number.

25426527679 is a deficient number, since it is larger than the sum of its proper divisors (3632361105).

25426527679 is an equidigital number, since it uses as much as digits as its factorization.

25426527679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632361104.

The product of its digits is 12700800, while the sum is 55.

The spelling of 25426527679 in words is "twenty-five billion, four hundred twenty-six million, five hundred twenty-seven thousand, six hundred seventy-nine".