6721234432 has 240 divisors, whose sum is σ = 15869921760. Its totient is φ = 2834923520.

The previous prime is 6721234397. The next prime is 6721234433. The reversal of 6721234432 is 2344321276.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6721234433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75519444 + ... + 75519532.

It is an arithmetic number, because the mean of its divisors is an integer number (66124674).

Almost surely, 2^6721234432 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 6721234432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7934960880).

6721234432 is an abundant number, since it is smaller than the sum of its proper divisors (9148687328).

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

6721234432 is a wasteful number, since it uses less digits than its factorization.

6721234432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 178 counting only the distinct ones).

The product of its digits is 48384, while the sum is 34.

The square root of 6721234432 is about 81983.1350461789. The cubic root of 6721234432 is about 1887.1931341079.

The spelling of 6721234432 in words is "six billion, seven hundred twenty-one million, two hundred thirty-four thousand, four hundred thirty-two".