204189988359 has 16 divisors (see below), whose sum is σ = 315528998400. Its totient is φ = 115036612320.

The previous prime is 204189988357. The next prime is 204189988361. The reversal of 204189988359 is 953889981402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204189988357) and next prime (204189988361).

It is not a de Polignac number, because 204189988359 - 2¹ = 204189988357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204189988359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204189988351) 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, 68472684 + ... + 68475665.

It is an arithmetic number, because the mean of its divisors is an integer number (19720562400).

Almost surely, 2^204189988359 is an apocalyptic number.

204189988359 is a deficient number, since it is larger than the sum of its proper divisors (111339010041).

204189988359 is a wasteful number, since it uses less digits than its factorization.

204189988359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136948430.

The product of its (nonzero) digits is 44789760, while the sum is 66.

The spelling of 204189988359 in words is "two hundred four billion, one hundred eighty-nine million, nine hundred eighty-eight thousand, three hundred fifty-nine".