3821215754730 has 128 divisors (see below), whose sum is σ = 10556338867200. Its totient is φ = 875504678400.

The previous prime is 3821215754689. The next prime is 3821215754731. The reversal of 3821215754730 is 374575121283.

It is a self number, because there is not a number n which added to its sum of digits gives 3821215754730.

It is not an unprimeable number, because it can be changed into a prime (3821215754731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1899870 + ... + 3354390.

It is an arithmetic number, because the mean of its divisors is an integer number (82471397400).

Almost surely, 2^{3821215754730} is an apocalyptic number.

3821215754730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3821215754730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5278169433600).

3821215754730 is an abundant number, since it is smaller than the sum of its proper divisors (6735123112470).

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

3821215754730 is a wasteful number, since it uses less digits than its factorization.

3821215754730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454980.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 3821215754730 in words is "three trillion, eight hundred twenty-one billion, two hundred fifteen million, seven hundred fifty-four thousand, seven hundred thirty".