6799521672 has 160 divisors (see below), whose sum is σ = 20039647320. Its totient is φ = 2151152640.

The previous prime is 6799521667. The next prime is 6799521689. The reversal of 6799521672 is 2761259976.

It can be written as a sum of positive squares in 4 ways, for example, as 5899161636 + 900360036 = 76806^2 + 30006^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 979558 + ... + 986474.

Almost surely, 2^6799521672 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 6799521672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10019823660).

6799521672 is an abundant number, since it is smaller than the sum of its proper divisors (13240125648).

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

6799521672 is a wasteful number, since it uses less digits than its factorization.

6799521672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7000 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 6799521672 is about 82459.2121718368. The cubic root of 6799521672 is about 1894.4920512791.

The spelling of 6799521672 in words is "six billion, seven hundred ninety-nine million, five hundred twenty-one thousand, six hundred seventy-two".