4749209639 has 2 divisors, whose sum is σ = 4749209640. Its totient is φ = 4749209638.

The previous prime is 4749209623. The next prime is 4749209653. The reversal of 4749209639 is 9369029474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4749209639 - 2⁴ = 4749209623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4749209609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2374604819 + 2374604820.

It is an arithmetic number, because the mean of its divisors is an integer number (2374604820).

Almost surely, 2^4749209639 is an apocalyptic number.

4749209639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4749209639 is an equidigital number, since it uses as much as digits as its factorization.

4749209639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 4749209639 is about 68914.5096405684. The cubic root of 4749209639 is about 1680.8944640439.

The spelling of 4749209639 in words is "four billion, seven hundred forty-nine million, two hundred nine thousand, six hundred thirty-nine".