27527493947831 has 2 divisors, whose sum is σ = 27527493947832. Its totient is φ = 27527493947830.

The previous prime is 27527493947801. The next prime is 27527493947903. The reversal of 27527493947831 is 13874939472572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27527493947831 - 2³⁴ = 27510314078647 is a prime.

It is a super-2 number, since 2×27527493947831² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27527493947801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13763746973915 + 13763746973916.

It is an arithmetic number, because the mean of its divisors is an integer number (13763746973916).

Almost surely, 2^{27527493947831} is an apocalyptic number.

27527493947831 is a deficient number, since it is larger than the sum of its proper divisors (1).

27527493947831 is an equidigital number, since it uses as much as digits as its factorization.

27527493947831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640120320, while the sum is 71.

The spelling of 27527493947831 in words is "twenty-seven trillion, five hundred twenty-seven billion, four hundred ninety-three million, nine hundred forty-seven thousand, eight hundred thirty-one".