4729643539 has 4 divisors (see below), whose sum is σ = 4729782456. Its totient is φ = 4729504624.

The previous prime is 4729643497. The next prime is 4729643543. The reversal of 4729643539 is 9353469274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9353469274 = 2 ⋅4676734637.

It is a cyclic number.

It is not a de Polignac number, because 4729643539 - 2¹⁷ = 4729512467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4729643549) 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, 20127 + ... + 99319.

It is an arithmetic number, because the mean of its divisors is an integer number (1182445614).

Almost surely, 2^4729643539 is an apocalyptic number.

4729643539 is a deficient number, since it is larger than the sum of its proper divisors (138917).

4729643539 is an equidigital number, since it uses as much as digits as its factorization.

4729643539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138916.

The product of its digits is 4898880, while the sum is 52.

The square root of 4729643539 is about 68772.4039059273. The cubic root of 4729643539 is about 1678.5829342813.

The spelling of 4729643539 in words is "four billion, seven hundred twenty-nine million, six hundred forty-three thousand, five hundred thirty-nine".