200001780217873 has 8 divisors (see below), whose sum is σ = 200167861499136. Its totient is φ = 199835767530000.

The previous prime is 200001780217849. The next prime is 200001780217903. The reversal of 200001780217873 is 378712087100002.

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 200001780217873 - 2²¹ = 200001778120721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200001780217823) 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, 11313586 + ... + 22978267.

It is an arithmetic number, because the mean of its divisors is an integer number (25020982687392).

Almost surely, 2^{200001780217873} is an apocalyptic number.

It is an amenable number.

200001780217873 is a deficient number, since it is larger than the sum of its proper divisors (166081281263).

200001780217873 is a wasteful number, since it uses less digits than its factorization.

200001780217873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34296695.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 200001780217873 in words is "two hundred trillion, one billion, seven hundred eighty million, two hundred seventeen thousand, eight hundred seventy-three".