27212395531 has 2 divisors, whose sum is σ = 27212395532. Its totient is φ = 27212395530.

The previous prime is 27212395481. The next prime is 27212395579. The reversal of 27212395531 is 13559321272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27212395531 - 2⁹ = 27212395019 is a prime.

It is a super-2 number, since 2×27212395531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27212395591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13606197765 + 13606197766.

It is an arithmetic number, because the mean of its divisors is an integer number (13606197766).

Almost surely, 2^27212395531 is an apocalyptic number.

27212395531 is a deficient number, since it is larger than the sum of its proper divisors (1).

27212395531 is an equidigital number, since it uses as much as digits as its factorization.

27212395531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The spelling of 27212395531 in words is "twenty-seven billion, two hundred twelve million, three hundred ninety-five thousand, five hundred thirty-one".