204268691592 has 768 divisors, whose sum is σ = 724492800000. Its totient is φ = 53152848000.

The previous prime is 204268691587. The next prime is 204268691629. The reversal of 204268691592 is 295196862402.

204268691592 is a `hidden beast` number, since 2 + 0 + 42 + 6 + 8 + 6 + 9 + 1 + 592 = 666.

204268691592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204268691592² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 1352772717 + ... + 1352772867.

It is an arithmetic number, because the mean of its divisors is an integer number (943350000).

Almost surely, 2^204268691592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204268691592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362246400000).

204268691592 is an abundant number, since it is smaller than the sum of its proper divisors (520224108408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204268691592 is a wasteful number, since it uses less digits than its factorization.

204268691592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 204268691592 in words is "two hundred four billion, two hundred sixty-eight million, six hundred ninety-one thousand, five hundred ninety-two".