204296938889 has 4 divisors (see below), whose sum is σ = 204437737680. Its totient is φ = 204156140100.

The previous prime is 204296938883. The next prime is 204296938891. The reversal of 204296938889 is 988839692402.

204296938889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988839692402 = 2 ⋅494419846201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204296938889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204296938883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70397219 + ... + 70400120.

It is an arithmetic number, because the mean of its divisors is an integer number (51109434420).

Almost surely, 2^204296938889 is an apocalyptic number.

It is an amenable number.

204296938889 is a deficient number, since it is larger than the sum of its proper divisors (140798791).

204296938889 is a wasteful number, since it uses less digits than its factorization.

204296938889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140798790.

The product of its (nonzero) digits is 107495424, while the sum is 68.

The spelling of 204296938889 in words is "two hundred four billion, two hundred ninety-six million, nine hundred thirty-eight thousand, eight hundred eighty-nine".