27315074869 has 2 divisors, whose sum is σ = 27315074870. Its totient is φ = 27315074868.

The previous prime is 27315074851. The next prime is 27315074881. The reversal of 27315074869 is 96847051372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26958356100 + 356718769 = 164190^2 + 18887^2 .

It is a cyclic number.

It is not a de Polignac number, because 27315074869 - 2¹³ = 27315066677 is a prime.

It is a super-2 number, since 2×27315074869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27315074849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13657537434 + 13657537435.

It is an arithmetic number, because the mean of its divisors is an integer number (13657537435).

It is a 1-persistent number, because it is pandigital, but 2⋅27315074869 = 54630149738 is not.

Almost surely, 2^27315074869 is an apocalyptic number.

It is an amenable number.

27315074869 is a deficient number, since it is larger than the sum of its proper divisors (1).

27315074869 is an equidigital number, since it uses as much as digits as its factorization.

27315074869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 27315074869 in words is "twenty-seven billion, three hundred fifteen million, seventy-four thousand, eight hundred sixty-nine".