200756450821 has 8 divisors (see below), whose sum is σ = 202346442144. Its totient is φ = 199167330960.

The previous prime is 200756450819. The next prime is 200756450849. The reversal of 200756450821 is 128054657002.

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 200756450821 - 2¹ = 200756450819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200756450861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248631 + ... + 680683.

It is an arithmetic number, because the mean of its divisors is an integer number (25293305268).

Almost surely, 2^200756450821 is an apocalyptic number.

It is an amenable number.

200756450821 is a deficient number, since it is larger than the sum of its proper divisors (1589991323).

200756450821 is a wasteful number, since it uses less digits than its factorization.

200756450821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435731.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 200756450821 in words is "two hundred billion, seven hundred fifty-six million, four hundred fifty thousand, eight hundred twenty-one".