40821105730636 has 96 divisors (see below), whose sum is σ = 89664408046080. Its totient is φ = 15797327616000.

The previous prime is 40821105730609. The next prime is 40821105730679. The reversal of 40821105730636 is 63603750112804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55637020 + ... + 56365948.

It is an arithmetic number, because the mean of its divisors is an integer number (934004250480).

Almost surely, 2^{40821105730636} 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 40821105730636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44832204023040).

40821105730636 is an abundant number, since it is smaller than the sum of its proper divisors (48843302315444).

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

40821105730636 is a wasteful number, since it uses less digits than its factorization.

40821105730636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730175 (or 730173 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 40821105730636 in words is "forty trillion, eight hundred twenty-one billion, one hundred five million, seven hundred thirty thousand, six hundred thirty-six".