27026920157 has 2 divisors, whose sum is σ = 27026920158. Its totient is φ = 27026920156.

The previous prime is 27026920121. The next prime is 27026920267. The reversal of 27026920157 is 75102962072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21864353956 + 5162566201 = 147866^2 + 71851^2 .

It is a cyclic number.

It is not a de Polignac number, because 27026920157 - 2¹⁰ = 27026919133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27026920457) 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 as a sum of consecutive naturals, namely, 13513460078 + 13513460079.

It is an arithmetic number, because the mean of its divisors is an integer number (13513460079).

Almost surely, 2^27026920157 is an apocalyptic number.

It is an amenable number.

27026920157 is a deficient number, since it is larger than the sum of its proper divisors (1).

27026920157 is an equidigital number, since it uses as much as digits as its factorization.

27026920157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 27026920157 in words is "twenty-seven billion, twenty-six million, nine hundred twenty thousand, one hundred fifty-seven".