394150562917 has 2 divisors, whose sum is σ = 394150562918. Its totient is φ = 394150562916.

The previous prime is 394150562881. The next prime is 394150562957. The reversal of 394150562917 is 719265051493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229159434436 + 164991128481 = 478706^2 + 406191^2 .

It is a cyclic number.

It is not a de Polignac number, because 394150562917 - 2¹⁵ = 394150530149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394150562957) 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, 197075281458 + 197075281459.

It is an arithmetic number, because the mean of its divisors is an integer number (197075281459).

Almost surely, 2^394150562917 is an apocalyptic number.

It is an amenable number.

394150562917 is a deficient number, since it is larger than the sum of its proper divisors (1).

394150562917 is an equidigital number, since it uses as much as digits as its factorization.

394150562917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 394150562917 in words is "three hundred ninety-four billion, one hundred fifty million, five hundred sixty-two thousand, nine hundred seventeen".