6727123157 has 2 divisors, whose sum is σ = 6727123158. Its totient is φ = 6727123156.

The previous prime is 6727123133. The next prime is 6727123187. The reversal of 6727123157 is 7513217276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3902625841 + 2824497316 = 62471^2 + 53146^2 .

It is a cyclic number.

It is not a de Polignac number, because 6727123157 - 2⁸ = 6727122901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6727123187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3363561578 + 3363561579.

It is an arithmetic number, because the mean of its divisors is an integer number (3363561579).

Almost surely, 2^6727123157 is an apocalyptic number.

It is an amenable number.

6727123157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6727123157 is an equidigital number, since it uses as much as digits as its factorization.

6727123157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 41.

The square root of 6727123157 is about 82019.0414294144. The cubic root of 6727123157 is about 1887.7441200678.

The spelling of 6727123157 in words is "six billion, seven hundred twenty-seven million, one hundred twenty-three thousand, one hundred fifty-seven".