393942329071 has 2 divisors, whose sum is σ = 393942329072. Its totient is φ = 393942329070.

The previous prime is 393942329063. The next prime is 393942329093. The reversal of 393942329071 is 170923249393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 393942329071 - 2³ = 393942329063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393942329041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196971164535 + 196971164536.

It is an arithmetic number, because the mean of its divisors is an integer number (196971164536).

Almost surely, 2^393942329071 is an apocalyptic number.

393942329071 is a deficient number, since it is larger than the sum of its proper divisors (1).

393942329071 is an equidigital number, since it uses as much as digits as its factorization.

393942329071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 393942329071 in words is "three hundred ninety-three billion, nine hundred forty-two million, three hundred twenty-nine thousand, seventy-one".