27942795413 has 4 divisors (see below), whose sum is σ = 30092241228. Its totient is φ = 25793349600.

The previous prime is 27942795383. The next prime is 27942795421. The reversal of 27942795413 is 31459724972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7909789969 + 20033005444 = 88937^2 + 141538^2 .

It is a cyclic number.

It is not a de Polignac number, because 27942795413 - 2⁸ = 27942795157 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 (27942798413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074722888 + ... + 1074722913.

It is an arithmetic number, because the mean of its divisors is an integer number (7523060307).

Almost surely, 2^27942795413 is an apocalyptic number.

It is an amenable number.

27942795413 is a deficient number, since it is larger than the sum of its proper divisors (2149445815).

27942795413 is a wasteful number, since it uses less digits than its factorization.

27942795413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149445814.

The product of its digits is 3810240, while the sum is 53.

The spelling of 27942795413 in words is "twenty-seven billion, nine hundred forty-two million, seven hundred ninety-five thousand, four hundred thirteen".