25791986479182 has 128 divisors (see below), whose sum is σ = 68346853982208. Its totient is φ = 6281878924800.

The previous prime is 25791986479157. The next prime is 25791986479187. The reversal of 25791986479182 is 28197468919752.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25791986479098 and 25791986479107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25791986479187) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3930478 + ... + 8187345.

It is an arithmetic number, because the mean of its divisors is an integer number (533959796736).

Almost surely, 2^{25791986479182} is an apocalyptic number.

25791986479182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25791986479182 is an abundant number, since it is smaller than the sum of its proper divisors (42554867503026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25791986479182 is a wasteful number, since it uses less digits than its factorization.

25791986479182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118134.

The product of its digits is 1097349120, while the sum is 78.

The spelling of 25791986479182 in words is "twenty-five trillion, seven hundred ninety-one billion, nine hundred eighty-six million, four hundred seventy-nine thousand, one hundred eighty-two".