27799731912825 has 180 divisors, whose sum is σ = 53246720880144. Its totient is φ = 14338191672000.

The previous prime is 27799731912781. The next prime is 27799731912863. The reversal of 27799731912825 is 52821913799772.

27799731912825 is a `hidden beast` number, since 2 + 7 + 7 + 99 + 73 + 191 + 282 + 5 = 666.

It is not a de Polignac number, because 27799731912825 - 2⁷ = 27799731912697 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 3352996930 + ... + 3353005220.

Almost surely, 2^{27799731912825} is an apocalyptic number.

27799731912825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27799731912825 is a deficient number, since it is larger than the sum of its proper divisors (25446988967319).

27799731912825 is a wasteful number, since it uses less digits than its factorization.

27799731912825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 10053 counting only the distinct ones).

The product of its digits is 240045120, while the sum is 72.

The spelling of 27799731912825 in words is "twenty-seven trillion, seven hundred ninety-nine billion, seven hundred thirty-one million, nine hundred twelve thousand, eight hundred twenty-five".