27481560331 has 2 divisors, whose sum is σ = 27481560332. Its totient is φ = 27481560330.

The previous prime is 27481560277. The next prime is 27481560349. The reversal of 27481560331 is 13306518472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27481560331 - 2¹¹ = 27481558283 is a prime.

It is a super-2 number, since 2×27481560331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27481560361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13740780165 + 13740780166.

It is an arithmetic number, because the mean of its divisors is an integer number (13740780166).

Almost surely, 2^27481560331 is an apocalyptic number.

27481560331 is a deficient number, since it is larger than the sum of its proper divisors (1).

27481560331 is an equidigital number, since it uses as much as digits as its factorization.

27481560331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 27481560331 in words is "twenty-seven billion, four hundred eighty-one million, five hundred sixty thousand, three hundred thirty-one".