394616729097 has 16 divisors (see below), whose sum is σ = 588884662080. Its totient is φ = 261157540896.

The previous prime is 394616729071. The next prime is 394616729119. The reversal of 394616729097 is 790927616493.

394616729097 is a `hidden beast` number, since 3 + 9 + 4 + 616 + 7 + 2 + 9 + 0 + 9 + 7 = 666.

It is not a de Polignac number, because 394616729097 - 2¹² = 394616725001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394616729057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53337303 + ... + 53344700.

It is an arithmetic number, because the mean of its divisors is an integer number (36805291380).

Almost surely, 2^394616729097 is an apocalyptic number.

It is an amenable number.

394616729097 is a deficient number, since it is larger than the sum of its proper divisors (194267932983).

394616729097 is a wasteful number, since it uses less digits than its factorization.

394616729097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106682149 (or 106682143 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 63.

The spelling of 394616729097 in words is "three hundred ninety-four billion, six hundred sixteen million, seven hundred twenty-nine thousand, ninety-seven".