27399135508 has 12 divisors (see below), whose sum is σ = 47954901652. Its totient is φ = 13697735040.

The previous prime is 27399135499. The next prime is 27399135521. The reversal of 27399135508 is 80553199372.

It can be written as a sum of positive squares in 2 ways, for example, as 18046698244 + 9352437264 = 134338^2 + 96708^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424263 + ... + 484558.

Almost surely, 2^27399135508 is an apocalyptic number.

It is an amenable number.

27399135508 is a deficient number, since it is larger than the sum of its proper divisors (20555766144).

27399135508 is a wasteful number, since it uses less digits than its factorization.

27399135508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916362 (or 916360 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 27399135508 in words is "twenty-seven billion, three hundred ninety-nine million, one hundred thirty-five thousand, five hundred eight".