394862425857 has 32 divisors (see below), whose sum is σ = 646322146560. Its totient is φ = 236984774400.

The previous prime is 394862425829. The next prime is 394862425873. The reversal of 394862425857 is 758524268493.

394862425857 is a `hidden beast` number, since 3 + 9 + 4 + 8 + 6 + 2 + 42 + 585 + 7 = 666.

It is not a de Polignac number, because 394862425857 - 2¹⁰ = 394862424833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394862425794 and 394862425803.

It is not an unprimeable number, because it can be changed into a prime (394862425897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18690894 + ... + 18712007.

It is an arithmetic number, because the mean of its divisors is an integer number (20197567080).

Almost surely, 2^394862425857 is an apocalyptic number.

It is an amenable number.

394862425857 is a deficient number, since it is larger than the sum of its proper divisors (251459720703).

394862425857 is a wasteful number, since it uses less digits than its factorization.

394862425857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37402950 (or 37402944 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 394862425857 in words is "three hundred ninety-four billion, eight hundred sixty-two million, four hundred twenty-five thousand, eight hundred fifty-seven".