27925317999 has 8 divisors (see below), whose sum is σ = 41370841520. Its totient is φ = 18616878648.

The previous prime is 27925317989. The next prime is 27925318007. The reversal of 27925317999 is 99971352972.

27925317999 is a `hidden beast` number, since 2 + 7 + 9 + 2 + 531 + 7 + 9 + 99 = 666.

It is not a de Polignac number, because 27925317999 - 2⁵ = 27925317967 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 (27925317929) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 517135492 + ... + 517135545.

It is an arithmetic number, because the mean of its divisors is an integer number (5171355190).

Almost surely, 2^27925317999 is an apocalyptic number.

27925317999 is a deficient number, since it is larger than the sum of its proper divisors (13445523521).

27925317999 is a wasteful number, since it uses less digits than its factorization.

27925317999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034271046 (or 1034271040 counting only the distinct ones).

The product of its digits is 19289340, while the sum is 63.

The spelling of 27925317999 in words is "twenty-seven billion, nine hundred twenty-five million, three hundred seventeen thousand, nine hundred ninety-nine".