3619983872 has 30 divisors (see below), whose sum is σ = 7235618643. Its totient is φ = 1809311232.

The previous prime is 3619983781. The next prime is 3619983877. The reversal of 3619983872 is 2783899163.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1809991936 + 1809991936 = 42544^2 + 42544^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=42544.

It is a super-2 number, since 2×3619983872² = 26208566467080224768, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3619983877) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1360079 + ... + 1362737.

Almost surely, 2^3619983872 is an apocalyptic number.

3619983872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3619983872 is a deficient number, since it is larger than the sum of its proper divisors (3615634771).

3619983872 is an frugal number, since it uses more digits than its factorization.

3619983872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336 (or 2661 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 3619983872 is about 60166.3017976010. The cubic root of 3619983872 is about 1535.4495278609.

The spelling of 3619983872 in words is "three billion, six hundred nineteen million, nine hundred eighty-three thousand, eight hundred seventy-two".