394713085111589 has 2 divisors, whose sum is σ = 394713085111590. Its totient is φ = 394713085111588.

The previous prime is 394713085111469. The next prime is 394713085111627. The reversal of 394713085111589 is 985111580317493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246135464577025 + 148577620534564 = 15688705^2 + 12189242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394713085111589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394713085111789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197356542555794 + 197356542555795.

It is an arithmetic number, because the mean of its divisors is an integer number (197356542555795).

Almost surely, 2^{394713085111589} is an apocalyptic number.

It is an amenable number.

394713085111589 is a deficient number, since it is larger than the sum of its proper divisors (1).

394713085111589 is an equidigital number, since it uses as much as digits as its factorization.

394713085111589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32659200, while the sum is 65.

The spelling of 394713085111589 in words is "three hundred ninety-four trillion, seven hundred thirteen billion, eighty-five million, one hundred eleven thousand, five hundred eighty-nine".