3618718872 has 192 divisors, whose sum is σ = 10270540800. Its totient is φ = 1058503680.

The previous prime is 3618718867. The next prime is 3618718913. The reversal of 3618718872 is 2788178163.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11635597 + ... + 11635907.

It is an arithmetic number, because the mean of its divisors is an integer number (53492400).

Almost surely, 2^3618718872 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 3618718872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5135270400).

3618718872 is an abundant number, since it is smaller than the sum of its proper divisors (6651821928).

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

3618718872 is a wasteful number, since it uses less digits than its factorization.

3618718872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 431 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 3618718872 is about 60155.7883499169. The cubic root of 3618718872 is about 1535.2706532199.

The spelling of 3618718872 in words is "three billion, six hundred eighteen million, seven hundred eighteen thousand, eight hundred seventy-two".