385132042817 has 2 divisors, whose sum is σ = 385132042818. Its totient is φ = 385132042816.

The previous prime is 385132042777. The next prime is 385132042831. The reversal of 385132042817 is 718240231583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385099678096 + 32364721 = 620564^2 + 5689^2 .

It is a cyclic number.

It is not a de Polignac number, because 385132042817 - 2²⁸ = 384863607361 is a prime.

It is not a weakly prime, because it can be changed into another prime (385132042877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192566021408 + 192566021409.

It is an arithmetic number, because the mean of its divisors is an integer number (192566021409).

Almost surely, 2^385132042817 is an apocalyptic number.

It is an amenable number.

385132042817 is a deficient number, since it is larger than the sum of its proper divisors (1).

385132042817 is an equidigital number, since it uses as much as digits as its factorization.

385132042817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 385132042817 in words is "three hundred eighty-five billion, one hundred thirty-two million, forty-two thousand, eight hundred seventeen".