389942798116 has 27 divisors (see below), whose sum is σ = 720249814641. Its totient is φ = 184698506304.

The previous prime is 389942798087. The next prime is 389942798131. The reversal of 389942798116 is 611897249983.

It is a happy number.

The square root of 389942798116 is 624454.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 385305732900 + 4637065216 = 620730^2 + 68096^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23721036 + ... + 23737468.

Almost surely, 2^389942798116 is an apocalyptic number.

389942798116 is the 624454-th square number.

It is an amenable number.

389942798116 is a deficient number, since it is larger than the sum of its proper divisors (330307016525).

389942798116 is an frugal number, since it uses more digits than its factorization.

389942798116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32908 (or 16454 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 67.

The spelling of 389942798116 in words is "three hundred eighty-nine billion, nine hundred forty-two million, seven hundred ninety-eight thousand, one hundred sixteen".