6939889396 has 48 divisors (see below), whose sum is σ = 14266082880. Its totient is φ = 2918597120.

The previous prime is 6939889393. The next prime is 6939889417.

6939889396 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939889393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34495 + ... + 122758.

It is an arithmetic number, because the mean of its divisors is an integer number (297210060).

Almost surely, 2^6939889396 is an apocalyptic number.

It is an amenable number.

6939889396 is an abundant number, since it is smaller than the sum of its proper divisors (7326193484).

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

6939889396 is a wasteful number, since it uses less digits than its factorization.

6939889396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157344 (or 157342 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 70.

The square root of 6939889396 is about 83305.9985595275. The cubic root of 6939889396 is about 1907.4398413785.

The spelling of 6939889396 in words is "six billion, nine hundred thirty-nine million, eight hundred eighty-nine thousand, three hundred ninety-six".