6457044169 has 2 divisors, whose sum is σ = 6457044170. Its totient is φ = 6457044168.

The previous prime is 6457044089. The next prime is 6457044199. The reversal of 6457044169 is 9614407546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4625632144 + 1831412025 = 68012^2 + 42795^2 .

It is a cyclic number.

It is not a de Polignac number, because 6457044169 - 2²³ = 6448655561 is a prime.

It is a super-2 number, since 2×6457044169² = 83386838800833801122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6457044199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228522084 + 3228522085.

It is an arithmetic number, because the mean of its divisors is an integer number (3228522085).

Almost surely, 2^6457044169 is an apocalyptic number.

It is an amenable number.

6457044169 is a deficient number, since it is larger than the sum of its proper divisors (1).

6457044169 is an equidigital number, since it uses as much as digits as its factorization.

6457044169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 6457044169 is about 80355.7351344632. The cubic root of 6457044169 is about 1862.1353832077.

The spelling of 6457044169 in words is "six billion, four hundred fifty-seven million, forty-four thousand, one hundred sixty-nine".