394616471745 has 8 divisors (see below), whose sum is σ = 631386354816. Its totient is φ = 210462118256.

The previous prime is 394616471741. The next prime is 394616471833. The reversal of 394616471745 is 547174616493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394616471745 - 2² = 394616471741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394616471741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13153882377 + ... + 13153882406.

It is an arithmetic number, because the mean of its divisors is an integer number (78923294352).

Almost surely, 2^394616471745 is an apocalyptic number.

It is an amenable number.

394616471745 is a deficient number, since it is larger than the sum of its proper divisors (236769883071).

394616471745 is a wasteful number, since it uses less digits than its factorization.

394616471745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26307764791.

The product of its digits is 15240960, while the sum is 57.

The spelling of 394616471745 in words is "three hundred ninety-four billion, six hundred sixteen million, four hundred seventy-one thousand, seven hundred forty-five".