27332642531 has 2 divisors, whose sum is σ = 27332642532. Its totient is φ = 27332642530.

The previous prime is 27332642521. The next prime is 27332642569. The reversal of 27332642531 is 13524623372.

It is an a-pointer prime, because the next prime (27332642569) can be obtained adding 27332642531 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27332642531 is a prime.

It is a super-2 number, since 2×27332642531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27332642521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13666321265 + 13666321266.

It is an arithmetic number, because the mean of its divisors is an integer number (13666321266).

Almost surely, 2^27332642531 is an apocalyptic number.

27332642531 is a deficient number, since it is larger than the sum of its proper divisors (1).

27332642531 is an equidigital number, since it uses as much as digits as its factorization.

27332642531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 38.

The spelling of 27332642531 in words is "twenty-seven billion, three hundred thirty-two million, six hundred forty-two thousand, five hundred thirty-one".