36123531797808 has 480 divisors, whose sum is σ = 129083458463232. Its totient is φ = 9523422720000.

The previous prime is 36123531797803. The next prime is 36123531797809. The reversal of 36123531797808 is 80879713532163.

36123531797808 is a `hidden beast` number, since 3 + 6 + 1 + 2 + 3 + 531 + 7 + 97 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (36123531797803) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 990997983 + ... + 991034433.

Almost surely, 2^{36123531797808} 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 36123531797808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64541729231616).

36123531797808 is an abundant number, since it is smaller than the sum of its proper divisors (92959926665424).

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

36123531797808 is a wasteful number, since it uses less digits than its factorization.

36123531797808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39295 (or 39277 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 36123531797808 in words is "thirty-six trillion, one hundred twenty-three billion, five hundred thirty-one million, seven hundred ninety-seven thousand, eight hundred eight".