36844558128 has 280 divisors, whose sum is σ = 122798497536. Its totient is φ = 10485936000.

The previous prime is 36844558043. The next prime is 36844558141. The reversal of 36844558128 is 82185544863.

36844558128 is a `hidden beast` number, since 3 + 6 + 84 + 4 + 558 + 1 + 2 + 8 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 25391803 + ... + 25393253.

Almost surely, 2^36844558128 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 36844558128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61399248768).

36844558128 is an abundant number, since it is smaller than the sum of its proper divisors (85953939408).

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

36844558128 is a wasteful number, since it uses less digits than its factorization.

36844558128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795 (or 1774 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The spelling of 36844558128 in words is "thirty-six billion, eight hundred forty-four million, five hundred fifty-eight thousand, one hundred twenty-eight".