2127943457 has 2 divisors, whose sum is σ = 2127943458. Its totient is φ = 2127943456.

The previous prime is 2127943403. The next prime is 2127943523. The reversal of 2127943457 is 7543497212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183979281 + 943964176 = 34409^2 + 30724^2 .

It is a cyclic number.

It is not a de Polignac number, because 2127943457 - 2¹⁰ = 2127942433 is a prime.

It is a super-2 number, since 2×2127943457² = 9056286712378221698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2127943157) 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, 1063971728 + 1063971729.

It is an arithmetic number, because the mean of its divisors is an integer number (1063971729).

Almost surely, 2^2127943457 is an apocalyptic number.

It is an amenable number.

2127943457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127943457 is an equidigital number, since it uses as much as digits as its factorization.

2127943457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The square root of 2127943457 is about 46129.6375121245. The cubic root of 2127943457 is about 1286.2341259162.

The spelling of 2127943457 in words is "two billion, one hundred twenty-seven million, nine hundred forty-three thousand, four hundred fifty-seven".