27189322057 has 2 divisors, whose sum is σ = 27189322058. Its totient is φ = 27189322056.

The previous prime is 27189322037. The next prime is 27189322063. The reversal of 27189322057 is 75022398172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26418926521 + 770395536 = 162539^2 + 27756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27189322057 is a prime.

It is a super-2 number, since 2×27189322057² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27189321998 and 27189322016.

It is not a weakly prime, because it can be changed into another prime (27189322037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13594661028 + 13594661029.

It is an arithmetic number, because the mean of its divisors is an integer number (13594661029).

Almost surely, 2^27189322057 is an apocalyptic number.

It is an amenable number.

27189322057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27189322057 is an equidigital number, since it uses as much as digits as its factorization.

27189322057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 27189322057 in words is "twenty-seven billion, one hundred eighty-nine million, three hundred twenty-two thousand, fifty-seven".