3864487777536 has 144 divisors (see below), whose sum is σ = 10312261908480. Its totient is φ = 1284774082560.

The previous prime is 3864487777511. The next prime is 3864487777727. The reversal of 3864487777536 is 6357777844683.

Its product of digits (3982970880) is a multiple of the sum of its prime factors (8232).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622197471 + ... + 622203681.

It is an arithmetic number, because the mean of its divisors is an integer number (71612929920).

Almost surely, 2^{3864487777536} 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 3864487777536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5156130954240).

3864487777536 is an abundant number, since it is smaller than the sum of its proper divisors (6447774130944).

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

3864487777536 is a wasteful number, since it uses less digits than its factorization.

3864487777536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232 (or 8218 counting only the distinct ones).

The product of its digits is 3982970880, while the sum is 75.

The spelling of 3864487777536 in words is "three trillion, eight hundred sixty-four billion, four hundred eighty-seven million, seven hundred seventy-seven thousand, five hundred thirty-six".