27407042497 has 2 divisors, whose sum is σ = 27407042498. Its totient is φ = 27407042496.

The previous prime is 27407042407. The next prime is 27407042549. The reversal of 27407042497 is 79424070472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14369056641 + 13037985856 = 119871^2 + 114184^2 .

It is a cyclic number.

It is not a de Polignac number, because 27407042497 - 2²⁷ = 27272824769 is a prime.

It is a super-2 number, since 2×27407042497² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27407042407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13703521248 + 13703521249.

It is an arithmetic number, because the mean of its divisors is an integer number (13703521249).

Almost surely, 2^27407042497 is an apocalyptic number.

It is an amenable number.

27407042497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27407042497 is an equidigital number, since it uses as much as digits as its factorization.

27407042497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 27407042497 in words is "twenty-seven billion, four hundred seven million, forty-two thousand, four hundred ninety-seven".