7212672756 has 96 divisors (see below), whose sum is σ = 19822037760. Its totient is φ = 2260224000.

The previous prime is 7212672749. The next prime is 7212672767. The reversal of 7212672756 is 6572762127.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2203401 + ... + 2206671.

It is an arithmetic number, because the mean of its divisors is an integer number (206479560).

Almost surely, 2^7212672756 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 7212672756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9911018880).

7212672756 is an abundant number, since it is smaller than the sum of its proper divisors (12609365004).

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

7212672756 is a wasteful number, since it uses less digits than its factorization.

7212672756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502 (or 4494 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 7212672756 is about 84927.4558432077. The cubic root of 7212672756 is about 1932.1110136434. Note that the first 3 decimals are identical.

The spelling of 7212672756 in words is "seven billion, two hundred twelve million, six hundred seventy-two thousand, seven hundred fifty-six".