3861334988730 has 640 divisors, whose sum is σ = 11315842560000. Its totient is φ = 942677761536.

The previous prime is 3861334988717. The next prime is 3861334988747. The reversal of 3861334988730 is 378894331683.

3861334988730 is a `hidden beast` number, since 3 + 8 + 6 + 1 + 33 + 498 + 87 + 30 = 666.

It is a Curzon number.

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 319 ways as a sum of consecutive naturals, for example, 7738146021 + ... + 7738146519.

It is an arithmetic number, because the mean of its divisors is an integer number (17681004000).

Almost surely, 2^{3861334988730} is an apocalyptic number.

3861334988730 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 3861334988730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5657921280000).

3861334988730 is an abundant number, since it is smaller than the sum of its proper divisors (7454507571270).

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

3861334988730 is a wasteful number, since it uses less digits than its factorization.

3861334988730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 3861334988730 in words is "three trillion, eight hundred sixty-one billion, three hundred thirty-four million, nine hundred eighty-eight thousand, seven hundred thirty".