4138731828318 has 16 divisors (see below), whose sum is σ = 8325310269456. Its totient is φ = 1371602840640.

The previous prime is 4138731828289. The next prime is 4138731828353. The reversal of 4138731828318 is 8138281378314.

It is a super-2 number, since 2×4138731828318² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1993607743 + ... + 1993609818.

It is an arithmetic number, because the mean of its divisors is an integer number (520331891841).

Almost surely, 2^{4138731828318} is an apocalyptic number.

4138731828318 is an abundant number, since it is smaller than the sum of its proper divisors (4186578441138).

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

4138731828318 is a wasteful number, since it uses less digits than its factorization.

4138731828318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987217739.

The product of its digits is 6193152, while the sum is 57.

The spelling of 4138731828318 in words is "four trillion, one hundred thirty-eight billion, seven hundred thirty-one million, eight hundred twenty-eight thousand, three hundred eighteen".