394672375243 has 2 divisors, whose sum is σ = 394672375244. Its totient is φ = 394672375242.

The previous prime is 394672375159. The next prime is 394672375249. The reversal of 394672375243 is 342573276493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 394672375243 - 2²⁹ = 394135504331 is a prime.

It is not a weakly prime, because it can be changed into another prime (394672375249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197336187621 + 197336187622.

It is an arithmetic number, because the mean of its divisors is an integer number (197336187622).

Almost surely, 2^394672375243 is an apocalyptic number.

394672375243 is a deficient number, since it is larger than the sum of its proper divisors (1).

394672375243 is an equidigital number, since it uses as much as digits as its factorization.

394672375243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 55.

The spelling of 394672375243 in words is "three hundred ninety-four billion, six hundred seventy-two million, three hundred seventy-five thousand, two hundred forty-three".