18204590434756 has 36 divisors (see below), whose sum is σ = 36918840709296. Its totient is φ = 7788060073600.

The previous prime is 18204590434741. The next prime is 18204590434757. The reversal of 18204590434756 is 65743409540281.

It is a super-2 number, since 2×18204590434756² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18204590434756.

It is not an unprimeable number, because it can be changed into a prime (18204590434757) 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 11 ways as a sum of consecutive naturals, for example, 715801630 + ... + 715827061.

It is an arithmetic number, because the mean of its divisors is an integer number (1025523353036).

It is a 1-persistent number, because it is pandigital, but 2⋅18204590434756 = 36409180869512 is not.

Almost surely, 2^{18204590434756} is an apocalyptic number.

It is an amenable number.

18204590434756 is an abundant number, since it is smaller than the sum of its proper divisors (18714250274540).

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

18204590434756 is a wasteful number, since it uses less digits than its factorization.

18204590434756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431628740 (or 1431628721 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 18204590434756 in words is "eighteen trillion, two hundred four billion, five hundred ninety million, four hundred thirty-four thousand, seven hundred fifty-six".