3988550558893 has 12 divisors (see below), whose sum is σ = 4210787883708. Its totient is φ = 3777361649600.

The previous prime is 3988550558833. The next prime is 3988550558899.

It is a happy number.

3988550558893 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1971701813929 + 2016848744964 = 1404173^2 + 1420158^2 .

It is not a de Polignac number, because 3988550558893 - 2²⁹ = 3988013687981 is a prime.

It is a super-2 number, since 2×3988550558893² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988550558899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37272280 + ... + 37379137.

It is an arithmetic number, because the mean of its divisors is an integer number (350898990309).

Almost surely, 2^{3988550558893} is an apocalyptic number.

It is an amenable number.

3988550558893 is a deficient number, since it is larger than the sum of its proper divisors (222237324815).

3988550558893 is a wasteful number, since it uses less digits than its factorization.

3988550558893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74651564 (or 74651541 counting only the distinct ones).

The product of its (nonzero) digits is 1866240000, while the sum is 76.

The spelling of 3988550558893 in words is "three trillion, nine hundred eighty-eight billion, five hundred fifty million, five hundred fifty-eight thousand, eight hundred ninety-three".