25464986679 has 16 divisors (see below), whose sum is σ = 37379802240. Its totient is φ = 15291732960.

The previous prime is 25464986639. The next prime is 25464986689. The reversal of 25464986679 is 97668946452.

It is not a de Polignac number, because 25464986679 - 2⁷ = 25464986551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464986639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3536157 + ... + 3543350.

It is an arithmetic number, because the mean of its divisors is an integer number (2336237640).

Almost surely, 2^25464986679 is an apocalyptic number.

25464986679 is a deficient number, since it is larger than the sum of its proper divisors (11914815561).

25464986679 is a wasteful number, since it uses less digits than its factorization.

25464986679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079630.

The product of its digits is 156764160, while the sum is 66.

The spelling of 25464986679 in words is "twenty-five billion, four hundred sixty-four million, nine hundred eighty-six thousand, six hundred seventy-nine".