393975000794 has 4 divisors (see below), whose sum is σ = 590962501194. Its totient is φ = 196987500396.

The previous prime is 393975000791. The next prime is 393975000817. The reversal of 393975000794 is 497000579393.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 393963352225 + 11648569 = 627665^2 + 3413^2 .

It is not an unprimeable number, because it can be changed into a prime (393975000791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98493750197 + ... + 98493750200.

Almost surely, 2^393975000794 is an apocalyptic number.

393975000794 is a deficient number, since it is larger than the sum of its proper divisors (196987500400).

393975000794 is a wasteful number, since it uses less digits than its factorization.

393975000794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196987500399.

The product of its (nonzero) digits is 6429780, while the sum is 56.

The spelling of 393975000794 in words is "three hundred ninety-three billion, nine hundred seventy-five million, seven hundred ninety-four", and thus it is an aban number.