27802136057 has 2 divisors, whose sum is σ = 27802136058. Its totient is φ = 27802136056.

The previous prime is 27802136027. The next prime is 27802136081. The reversal of 27802136057 is 75063120872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22522805776 + 5279330281 = 150076^2 + 72659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27802136057 is a prime.

It is not a weakly prime, because it can be changed into another prime (27802136017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901068028 + 13901068029.

It is an arithmetic number, because the mean of its divisors is an integer number (13901068029).

Almost surely, 2^27802136057 is an apocalyptic number.

It is an amenable number.

27802136057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27802136057 is an equidigital number, since it uses as much as digits as its factorization.

27802136057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 27802136057 in words is "twenty-seven billion, eight hundred two million, one hundred thirty-six thousand, fifty-seven".