57445796669 has 2 divisors, whose sum is σ = 57445796670. Its totient is φ = 57445796668.

The previous prime is 57445796623. The next prime is 57445796693. The reversal of 57445796669 is 96669754475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43718628100 + 13727168569 = 209090^2 + 117163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57445796669 is a prime.

It is a super-2 number, since 2×57445796669² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57445796599 and 57445796608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57445796609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28722898334 + 28722898335.

It is an arithmetic number, because the mean of its divisors is an integer number (28722898335).

Almost surely, 2^57445796669 is an apocalyptic number.

It is an amenable number.

57445796669 is a deficient number, since it is larger than the sum of its proper divisors (1).

57445796669 is an equidigital number, since it uses as much as digits as its factorization.

57445796669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 342921600, while the sum is 68.

The spelling of 57445796669 in words is "fifty-seven billion, four hundred forty-five million, seven hundred ninety-six thousand, six hundred sixty-nine".