4742272729 has 2 divisors, whose sum is σ = 4742272730. Its totient is φ = 4742272728.

The previous prime is 4742272727. The next prime is 4742272739. The reversal of 4742272729 is 9272722474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4182855625 + 559417104 = 64675^2 + 23652^2 .

It is a cyclic number.

It is not a de Polignac number, because 4742272729 - 2¹ = 4742272727 is a prime.

Together with 4742272727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4742272727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2371136364 + 2371136365.

It is an arithmetic number, because the mean of its divisors is an integer number (2371136365).

Almost surely, 2^4742272729 is an apocalyptic number.

It is an amenable number.

4742272729 is a deficient number, since it is larger than the sum of its proper divisors (1).

4742272729 is an equidigital number, since it uses as much as digits as its factorization.

4742272729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 46.

The square root of 4742272729 is about 68864.1614266811. The cubic root of 4742272729 is about 1680.0756684786.

The spelling of 4742272729 in words is "four billion, seven hundred forty-two million, two hundred seventy-two thousand, seven hundred twenty-nine".