27402494369 has 2 divisors, whose sum is σ = 27402494370. Its totient is φ = 27402494368.

The previous prime is 27402494341. The next prime is 27402494381. The reversal of 27402494369 is 96349420472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27365430625 + 37063744 = 165425^2 + 6088^2 .

It is a cyclic number.

It is not a de Polignac number, because 27402494369 - 2²⁰ = 27401445793 is a prime.

It is a super-2 number, since 2×27402494369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27402494309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13701247184 + 13701247185.

It is an arithmetic number, because the mean of its divisors is an integer number (13701247185).

Almost surely, 2^27402494369 is an apocalyptic number.

It is an amenable number.

27402494369 is a deficient number, since it is larger than the sum of its proper divisors (1).

27402494369 is an equidigital number, since it uses as much as digits as its factorization.

27402494369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 27402494369 in words is "twenty-seven billion, four hundred two million, four hundred ninety-four thousand, three hundred sixty-nine".