6752733721 has 4 divisors (see below), whose sum is σ = 6766600192. Its totient is φ = 6738867252.

The previous prime is 6752733719. The next prime is 6752733749. The reversal of 6752733721 is 1273372576.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6752733721 - 2¹ = 6752733719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6752733791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6932505 + ... + 6933478.

It is an arithmetic number, because the mean of its divisors is an integer number (1691650048).

Almost surely, 2^6752733721 is an apocalyptic number.

It is an amenable number.

6752733721 is a deficient number, since it is larger than the sum of its proper divisors (13866471).

6752733721 is a wasteful number, since it uses less digits than its factorization.

6752733721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866470.

The product of its digits is 370440, while the sum is 43.

The square root of 6752733721 is about 82175.0188378439. The cubic root of 6752733721 is about 1890.1366717138.

The spelling of 6752733721 in words is "six billion, seven hundred fifty-two million, seven hundred thirty-three thousand, seven hundred twenty-one".