6899233824 has 144 divisors (see below), whose sum is σ = 23397558912. Its totient is φ = 1885492224.

The previous prime is 6899233787. The next prime is 6899233829. The reversal of 6899233824 is 4283329986.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6899233829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28029 + ... + 120764.

It is an arithmetic number, because the mean of its divisors is an integer number (162483048).

Almost surely, 2^6899233824 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 6899233824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11698779456).

6899233824 is an abundant number, since it is smaller than the sum of its proper divisors (16498325088).

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

6899233824 is a wasteful number, since it uses less digits than its factorization.

6899233824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148839 (or 148828 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 6899233824 is about 83061.6266635803. The cubic root of 6899233824 is about 1903.7077941756.

The spelling of 6899233824 in words is "six billion, eight hundred ninety-nine million, two hundred thirty-three thousand, eight hundred twenty-four".