2127755851369 has 2 divisors, whose sum is σ = 2127755851370. Its totient is φ = 2127755851368.

The previous prime is 2127755851363. The next prime is 2127755851423. The reversal of 2127755851369 is 9631585577212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2098441960000 + 29313891369 = 1448600^2 + 171213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2127755851369 is a prime.

It is a super-2 number, since 2×2127755851369² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2127755851363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063877925684 + 1063877925685.

It is an arithmetic number, because the mean of its divisors is an integer number (1063877925685).

Almost surely, 2^{2127755851369} is an apocalyptic number.

It is an amenable number.

2127755851369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127755851369 is an equidigital number, since it uses as much as digits as its factorization.

2127755851369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752000, while the sum is 61.

The spelling of 2127755851369 in words is "two trillion, one hundred twenty-seven billion, seven hundred fifty-five million, eight hundred fifty-one thousand, three hundred sixty-nine".