393789075066 has 16 divisors (see below), whose sum is σ = 875086833600. Its totient is φ = 131263025004.

The previous prime is 393789075047. The next prime is 393789075157. The reversal of 393789075066 is 660570987393.

393789075066 is a `hidden beast` number, since 3 + 9 + 37 + 8 + 90 + 7 + 506 + 6 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 393789074994 and 393789075012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3646195086 + ... + 3646195193.

It is an arithmetic number, because the mean of its divisors is an integer number (54692927100).

Almost surely, 2^393789075066 is an apocalyptic number.

393789075066 is an abundant number, since it is smaller than the sum of its proper divisors (481297758534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393789075066 is a wasteful number, since it uses less digits than its factorization.

393789075066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292390290 (or 7292390284 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 63.

The spelling of 393789075066 in words is "three hundred ninety-three billion, seven hundred eighty-nine million, seventy-five thousand, sixty-six".