4546756721 has 8 divisors (see below), whose sum is σ = 4897206720. Its totient is φ = 4196406672.

The previous prime is 4546756699. The next prime is 4546756733. The reversal of 4546756721 is 1276576454.

4546756721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4546756721 - 2⁶ = 4546756657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4546756751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88676 + ... + 130218.

It is an arithmetic number, because the mean of its divisors is an integer number (612150840).

Almost surely, 2^4546756721 is an apocalyptic number.

It is an amenable number.

4546756721 is a deficient number, since it is larger than the sum of its proper divisors (350449999).

4546756721 is a wasteful number, since it uses less digits than its factorization.

4546756721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49975.

The product of its digits is 1411200, while the sum is 47.

The square root of 4546756721 is about 67429.6427470886. The cubic root of 4546756721 is about 1656.6619815655.

The spelling of 4546756721 in words is "four billion, five hundred forty-six million, seven hundred fifty-six thousand, seven hundred twenty-one".