6979533912 has 128 divisors (see below), whose sum is σ = 20955110400. Its totient is φ = 2139716736.

The previous prime is 6979533857. The next prime is 6979533917. The reversal of 6979533912 is 2193359796.

It is a happy number.

6979533912 is a `hidden beast` number, since 6 + 97 + 9 + 533 + 9 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6979533917) 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, 790273 + ... + 799055.

It is an arithmetic number, because the mean of its divisors is an integer number (163711800).

Almost surely, 2^6979533912 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 6979533912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10477555200).

6979533912 is an abundant number, since it is smaller than the sum of its proper divisors (13975576488).

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

6979533912 is a wasteful number, since it uses less digits than its factorization.

6979533912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094 (or 9084 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 6979533912 is about 83543.6048539923. The cubic root of 6979533912 is about 1911.0650668263.

The spelling of 6979533912 in words is "six billion, nine hundred seventy-nine million, five hundred thirty-three thousand, nine hundred twelve".