36123563844 has 45 divisors (see below), whose sum is σ = 94443075727. Its totient is φ = 12040047576.

The previous prime is 36123563837. The next prime is 36123563849. The reversal of 36123563844 is 44836532163.

The square root of 36123563844 is 190062.

It is a perfect power (a square), and thus also a powerful number.

36123563844 is a `hidden beast` number, since 3 + 6 + 1 + 2 + 3 + 5 + 638 + 4 + 4 = 666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36123563844.

It is not an unprimeable number, because it can be changed into a prime (36123563849) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3415837 + ... + 3426395.

Almost surely, 2^36123563844 is an apocalyptic number.

36123563844 is the 190062-nd square number.

It is an amenable number.

36123563844 is an abundant number, since it is smaller than the sum of its proper divisors (58319511883).

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

36123563844 is an frugal number, since it uses more digits than its factorization.

36123563844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21134 (or 10564 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 36123563844 in words is "thirty-six billion, one hundred twenty-three million, five hundred sixty-three thousand, eight hundred forty-four".