4551736729 has 12 divisors (see below), whose sum is σ = 4921095060. Its totient is φ = 4206983040.

The previous prime is 4551736699. The next prime is 4551736733. The reversal of 4551736729 is 9276371554.

It can be written as a sum of positive squares in 2 ways, for example, as 2079360000 + 2472376729 = 45600^2 + 49723^2 .

It is not a de Polignac number, because 4551736729 - 2⁵ = 4551736697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4551736129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138964 + ... + 168565.

It is an arithmetic number, because the mean of its divisors is an integer number (410091255).

Almost surely, 2^4551736729 is an apocalyptic number.

It is an amenable number.

4551736729 is a deficient number, since it is larger than the sum of its proper divisors (369358331).

4551736729 is a wasteful number, since it uses less digits than its factorization.

4551736729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307608 (or 307589 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 49.

The square root of 4551736729 is about 67466.5600797906. The cubic root of 4551736729 is about 1657.2666015285.

The spelling of 4551736729 in words is "four billion, five hundred fifty-one million, seven hundred thirty-six thousand, seven hundred twenty-nine".