409427741857 has 2 divisors, whose sum is σ = 409427741858. Its totient is φ = 409427741856.

The previous prime is 409427741843. The next prime is 409427741911. The reversal of 409427741857 is 758147724904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400567473216 + 8860268641 = 632904^2 + 94129^2 .

It is a cyclic number.

It is not a de Polignac number, because 409427741857 - 2²³ = 409419353249 is a prime.

It is not a weakly prime, because it can be changed into another prime (409427744857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204713870928 + 204713870929.

It is an arithmetic number, because the mean of its divisors is an integer number (204713870929).

Almost surely, 2^409427741857 is an apocalyptic number.

It is an amenable number.

409427741857 is a deficient number, since it is larger than the sum of its proper divisors (1).

409427741857 is an equidigital number, since it uses as much as digits as its factorization.

409427741857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 409427741857 in words is "four hundred nine billion, four hundred twenty-seven million, seven hundred forty-one thousand, eight hundred fifty-seven".