394065937351 has 2 divisors, whose sum is σ = 394065937352. Its totient is φ = 394065937350.

The previous prime is 394065937339. The next prime is 394065937379. The reversal of 394065937351 is 153739560493.

It is a weak prime.

It is an emirp because it is prime and its reverse (153739560493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394065937351 - 2²³ = 394057548743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394065937292 and 394065937301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394065937751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197032968675 + 197032968676.

It is an arithmetic number, because the mean of its divisors is an integer number (197032968676).

Almost surely, 2^394065937351 is an apocalyptic number.

394065937351 is a deficient number, since it is larger than the sum of its proper divisors (1).

394065937351 is an equidigital number, since it uses as much as digits as its factorization.

394065937351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9185400, while the sum is 55.

The spelling of 394065937351 in words is "three hundred ninety-four billion, sixty-five million, nine hundred thirty-seven thousand, three hundred fifty-one".