394713085111469 has 2 divisors, whose sum is σ = 394713085111470. Its totient is φ = 394713085111468.

The previous prime is 394713085111453. The next prime is 394713085111589. The reversal of 394713085111469 is 964111580317493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352686972721444 + 42026112390025 = 18779962^2 + 6482755^2 .

It is a cyclic number.

It is not a de Polignac number, because 394713085111469 - 2⁴ = 394713085111453 is a prime.

It is a super-2 number, since 2×394713085111469² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394713085111439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197356542555734 + 197356542555735.

It is an arithmetic number, because the mean of its divisors is an integer number (197356542555735).

Almost surely, 2^{394713085111469} is an apocalyptic number.

It is an amenable number.

394713085111469 is a deficient number, since it is larger than the sum of its proper divisors (1).

394713085111469 is an equidigital number, since it uses as much as digits as its factorization.

394713085111469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 394713085111469 in words is "three hundred ninety-four trillion, seven hundred thirteen billion, eighty-five million, one hundred eleven thousand, four hundred sixty-nine".