27169049399 has 2 divisors, whose sum is σ = 27169049400. Its totient is φ = 27169049398.

The previous prime is 27169049387. The next prime is 27169049423. The reversal of 27169049399 is 99394096172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27169049399 - 2⁸ = 27169049143 is a prime.

It is a super-2 number, since 2×27169049399² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27169049309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13584524699 + 13584524700.

It is an arithmetic number, because the mean of its divisors is an integer number (13584524700).

Almost surely, 2^27169049399 is an apocalyptic number.

27169049399 is a deficient number, since it is larger than the sum of its proper divisors (1).

27169049399 is an equidigital number, since it uses as much as digits as its factorization.

27169049399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6613488, while the sum is 59.

The spelling of 27169049399 in words is "twenty-seven billion, one hundred sixty-nine million, forty-nine thousand, three hundred ninety-nine".