839066538516 has 96 divisors (see below), whose sum is σ = 2100132249600. Its totient is φ = 259942504320.

The previous prime is 839066538511. The next prime is 839066538539. The reversal of 839066538516 is 615835660938.

It is a happy number.

It is a super-2 number, since 2×839066538516² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 839066538516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839066538511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5248005 + ... + 5405523.

It is an arithmetic number, because the mean of its divisors is an integer number (21876377600).

Almost surely, 2^839066538516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 839066538516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050066124800).

839066538516 is an abundant number, since it is smaller than the sum of its proper divisors (1261065711084).

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

839066538516 is a wasteful number, since it uses less digits than its factorization.

839066538516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157989 (or 157987 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 839066538516 in words is "eight hundred thirty-nine billion, sixty-six million, five hundred thirty-eight thousand, five hundred sixteen".