3867728358 has 128 divisors (see below), whose sum is σ = 8778792960. Its totient is φ = 1128314880.

The previous prime is 3867728357. The next prime is 3867728393. The reversal of 3867728358 is 8538277683.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3867728298 and 3867728307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867728351) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 30454491 + ... + 30454617.

It is an arithmetic number, because the mean of its divisors is an integer number (68584320).

Almost surely, 2^3867728358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3867728358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4389396480).

3867728358 is an abundant number, since it is smaller than the sum of its proper divisors (4911064602).

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

3867728358 is a wasteful number, since it uses less digits than its factorization.

3867728358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 13547520, while the sum is 57.

The square root of 3867728358 is about 62191.0633290668. The cubic root of 3867728358 is about 1569.7072165570.

The spelling of 3867728358 in words is "three billion, eight hundred sixty-seven million, seven hundred twenty-eight thousand, three hundred fifty-eight".