25614481879 has 16 divisors (see below), whose sum is σ = 30713399296. Its totient is φ = 20898712800.

The previous prime is 25614481861. The next prime is 25614481889. The reversal of 25614481879 is 97818441652.

It is not a de Polignac number, because 25614481879 - 2⁵ = 25614481847 is a prime.

It is a super-2 number, since 2×25614481879² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25614481889) 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, 954297 + ... + 980770.

It is an arithmetic number, because the mean of its divisors is an integer number (1919587456).

Almost surely, 2^25614481879 is an apocalyptic number.

25614481879 is a deficient number, since it is larger than the sum of its proper divisors (5098917417).

25614481879 is a wasteful number, since it uses less digits than its factorization.

25614481879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935166.

The product of its digits is 3870720, while the sum is 55.

The spelling of 25614481879 in words is "twenty-five billion, six hundred fourteen million, four hundred eighty-one thousand, eight hundred seventy-nine".