38899138218 has 16 divisors (see below), whose sum is σ = 77874486816. Its totient is φ = 12953677680.

The previous prime is 38899138199. The next prime is 38899138247. The reversal of 38899138218 is 81283199883.

38899138218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×38899138218⁴ (a number of 43 digits) contains 4444 as substring.

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, 3168796 + ... + 3181047.

It is an arithmetic number, because the mean of its divisors is an integer number (4867155426).

Almost surely, 2^38899138218 is an apocalyptic number.

38899138218 is an abundant number, since it is smaller than the sum of its proper divisors (38975348598).

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

38899138218 is a wasteful number, since it uses less digits than its factorization.

38899138218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350869.

The product of its digits is 5971968, while the sum is 60.

The spelling of 38899138218 in words is "thirty-eight billion, eight hundred ninety-nine million, one hundred thirty-eight thousand, two hundred eighteen".