27813138049 has 8 divisors (see below), whose sum is σ = 29507517440. Its totient is φ = 26141811696.

The previous prime is 27813138047. The next prime is 27813138053. The reversal of 27813138049 is 94083131872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27813138049 - 2¹ = 27813138047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27813138047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5760774 + ... + 5765599.

It is an arithmetic number, because the mean of its divisors is an integer number (3688439680).

Almost surely, 2^27813138049 is an apocalyptic number.

It is an amenable number.

27813138049 is a deficient number, since it is larger than the sum of its proper divisors (1694379391).

27813138049 is a wasteful number, since it uses less digits than its factorization.

27813138049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11526519.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 27813138049 in words is "twenty-seven billion, eight hundred thirteen million, one hundred thirty-eight thousand, forty-nine".