36728644788 has 72 divisors (see below), whose sum is σ = 101446319520. Its totient is φ = 11111837760.

The previous prime is 36728644753. The next prime is 36728644807. The reversal of 36728644788 is 88744682763.

36728644788 is a `hidden beast` number, since 36 + 7 + 2 + 86 + 447 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170206 + ... + 320042.

It is an arithmetic number, because the mean of its divisors is an integer number (1408976660).

Almost surely, 2^36728644788 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 36728644788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50723159760).

36728644788 is an abundant number, since it is smaller than the sum of its proper divisors (64717674732).

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

36728644788 is a wasteful number, since it uses less digits than its factorization.

36728644788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150477 (or 150472 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 63.

The spelling of 36728644788 in words is "thirty-six billion, seven hundred twenty-eight million, six hundred forty-four thousand, seven hundred eighty-eight".