27331473899531 has 2 divisors, whose sum is σ = 27331473899532. Its totient is φ = 27331473899530.

The previous prime is 27331473899503. The next prime is 27331473899537. The reversal of 27331473899531 is 13599837413372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27331473899531 - 2²² = 27331469705227 is a prime.

It is a super-2 number, since 2×27331473899531² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (27331473899537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13665736949765 + 13665736949766.

It is an arithmetic number, because the mean of its divisors is an integer number (13665736949766).

Almost surely, 2^{27331473899531} is an apocalyptic number.

27331473899531 is a deficient number, since it is larger than the sum of its proper divisors (1).

27331473899531 is an equidigital number, since it uses as much as digits as its factorization.

27331473899531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102876480, while the sum is 65.

The spelling of 27331473899531 in words is "twenty-seven trillion, three hundred thirty-one billion, four hundred seventy-three million, eight hundred ninety-nine thousand, five hundred thirty-one".