27349465189 has 4 divisors (see below), whose sum is σ = 27351412300. Its totient is φ = 27347518080.

The previous prime is 27349465159. The next prime is 27349465223. The reversal of 27349465189 is 98156494372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25697693025 + 1651772164 = 160305^2 + 40642^2 .

It is a cyclic number.

It is not a de Polignac number, because 27349465189 - 2²⁵ = 27315910757 is a prime.

It is a super-2 number, since 2×27349465189² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27349465159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952332 + ... + 980629.

It is an arithmetic number, because the mean of its divisors is an integer number (6837853075).

Almost surely, 2^27349465189 is an apocalyptic number.

It is an amenable number.

27349465189 is a deficient number, since it is larger than the sum of its proper divisors (1947111).

27349465189 is a wasteful number, since it uses less digits than its factorization.

27349465189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947110.

The product of its digits is 13063680, while the sum is 58.

The spelling of 27349465189 in words is "twenty-seven billion, three hundred forty-nine million, four hundred sixty-five thousand, one hundred eighty-nine".