200394417997 has 8 divisors (see below), whose sum is σ = 212188183416. Its totient is φ = 188601303552.

The previous prime is 200394417983. The next prime is 200394418033. The reversal of 200394417997 is 799714493002.

It can be written as a sum of positive squares in 4 ways, for example, as 48906880201 + 151487537796 = 221149^2 + 389214^2 .

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 200394417997 - 2¹⁵ = 200394385229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200394417967) 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, 563743 + ... + 847699.

It is an arithmetic number, because the mean of its divisors is an integer number (26523522927).

Almost surely, 2^200394417997 is an apocalyptic number.

It is an amenable number.

200394417997 is a deficient number, since it is larger than the sum of its proper divisors (11793765419).

200394417997 is a wasteful number, since it uses less digits than its factorization.

200394417997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325487.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 200394417997 in words is "two hundred billion, three hundred ninety-four million, four hundred seventeen thousand, nine hundred ninety-seven".