36805621608 has 192 divisors, whose sum is σ = 117118310400. Its totient is φ = 10222709760.

The previous prime is 36805621607. The next prime is 36805621609. The reversal of 36805621608 is 80612650863.

36805621608 is a `hidden beast` number, since 3 + 6 + 80 + 562 + 1 + 6 + 0 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (36805621607) and next prime (36805621609).

It is not an unprimeable number, because it can be changed into a prime (36805621607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6051513 + ... + 6057591.

It is an arithmetic number, because the mean of its divisors is an integer number (609991200).

Almost surely, 2^36805621608 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 36805621608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58559155200).

36805621608 is an abundant number, since it is smaller than the sum of its proper divisors (80312688792).

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

36805621608 is a wasteful number, since it uses less digits than its factorization.

36805621608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432 (or 6425 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 36805621608 in words is "thirty-six billion, eight hundred five million, six hundred twenty-one thousand, six hundred eight".