27492912917 has 2 divisors, whose sum is σ = 27492912918. Its totient is φ = 27492912916.

The previous prime is 27492912901. The next prime is 27492912919. The reversal of 27492912917 is 71921929472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23634142756 + 3858770161 = 153734^2 + 62119^2 .

It is a cyclic number.

It is not a de Polignac number, because 27492912917 - 2⁴ = 27492912901 is a prime.

Together with 27492912919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27492912919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13746456458 + 13746456459.

It is an arithmetic number, because the mean of its divisors is an integer number (13746456459).

Almost surely, 2^27492912917 is an apocalyptic number.

It is an amenable number.

27492912917 is a deficient number, since it is larger than the sum of its proper divisors (1).

27492912917 is an equidigital number, since it uses as much as digits as its factorization.

27492912917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 53.

The spelling of 27492912917 in words is "twenty-seven billion, four hundred ninety-two million, nine hundred twelve thousand, nine hundred seventeen".