27392142497 has 2 divisors, whose sum is σ = 27392142498. Its totient is φ = 27392142496.

The previous prime is 27392142487. The next prime is 27392142511. The reversal of 27392142497 is 79424129372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16363782241 + 11028360256 = 127921^2 + 105016^2 .

It is a cyclic number.

It is not a de Polignac number, because 27392142497 - 2¹² = 27392138401 is a prime.

It is a super-4 number, since 4×27392142497⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is not a weakly prime, because it can be changed into another prime (27392142457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13696071248 + 13696071249.

It is an arithmetic number, because the mean of its divisors is an integer number (13696071249).

Almost surely, 2^27392142497 is an apocalyptic number.

It is an amenable number.

27392142497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27392142497 is an equidigital number, since it uses as much as digits as its factorization.

27392142497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 50.

The spelling of 27392142497 in words is "twenty-seven billion, three hundred ninety-two million, one hundred forty-two thousand, four hundred ninety-seven".