1836564004 has 48 divisors (see below), whose sum is σ = 3598955136. Its totient is φ = 812793600.

The previous prime is 1836563929. The next prime is 1836564091. The reversal of 1836564004 is 4004656381.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 1484074 + ... + 1485310.

It is an arithmetic number, because the mean of its divisors is an integer number (74978232).

Almost surely, 2^1836564004 is an apocalyptic number.

It is an amenable number.

1836564004 is a deficient number, since it is larger than the sum of its proper divisors (1762391132).

1836564004 is a wasteful number, since it uses less digits than its factorization.

1836564004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1836564004 is about 42855.1514289706. The cubic root of 1836564004 is about 1224.6219028039.

It can be divided in two parts, 18365 and 64004, that added together give a square (82369 = 287²).

The spelling of 1836564004 in words is "one billion, eight hundred thirty-six million, five hundred sixty-four thousand, four".