394616725039 has 2 divisors, whose sum is σ = 394616725040. Its totient is φ = 394616725038.

The previous prime is 394616725001. The next prime is 394616725049. The reversal of 394616725039 is 930527616493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 394616725039 - 2¹³ = 394616716847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394616725049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197308362519 + 197308362520.

It is an arithmetic number, because the mean of its divisors is an integer number (197308362520).

Almost surely, 2^394616725039 is an apocalyptic number.

394616725039 is a deficient number, since it is larger than the sum of its proper divisors (1).

394616725039 is an equidigital number, since it uses as much as digits as its factorization.

394616725039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 394616725039 in words is "three hundred ninety-four billion, six hundred sixteen million, seven hundred twenty-five thousand, thirty-nine".