27617712631 has 2 divisors, whose sum is σ = 27617712632. Its totient is φ = 27617712630.

The previous prime is 27617712613. The next prime is 27617712643. The reversal of 27617712631 is 13621771672.

It is a happy number.

Together with previous prime (27617712613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27617712631 - 2¹⁵ = 27617679863 is a prime.

It is a super-2 number, since 2×27617712631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27617716631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13808856315 + 13808856316.

It is an arithmetic number, because the mean of its divisors is an integer number (13808856316).

Almost surely, 2^27617712631 is an apocalyptic number.

27617712631 is a deficient number, since it is larger than the sum of its proper divisors (1).

27617712631 is an equidigital number, since it uses as much as digits as its factorization.

27617712631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 43.

The spelling of 27617712631 in words is "twenty-seven billion, six hundred seventeen million, seven hundred twelve thousand, six hundred thirty-one".