839849538988 has 12 divisors (see below), whose sum is σ = 1470762339480. Its totient is φ = 419631727712.

The previous prime is 839849538971. The next prime is 839849539079. The reversal of 839849538988 is 889835948938.

It is a happy number.

It is a super-2 number, since 2×839849538988² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73253998 + ... + 73265461.

It is an arithmetic number, because the mean of its divisors is an integer number (122563528290).

Almost surely, 2^839849538988 is an apocalyptic number.

It is an amenable number.

839849538988 is a deficient number, since it is larger than the sum of its proper divisors (630912800492).

839849538988 is a wasteful number, since it uses less digits than its factorization.

839849538988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146520896 (or 146520894 counting only the distinct ones).

The product of its digits is 4299816960, while the sum is 82.

The spelling of 839849538988 in words is "eight hundred thirty-nine billion, eight hundred forty-nine million, five hundred thirty-eight thousand, nine hundred eighty-eight".