4709909638 has 32 divisors (see below), whose sum is σ = 8144398080. Its totient is φ = 2001011040.

The previous prime is 4709909623. The next prime is 4709909651. The reversal of 4709909638 is 8369099074.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1716948 + ... + 1719688.

It is an arithmetic number, because the mean of its divisors is an integer number (254512440).

Almost surely, 2^4709909638 is an apocalyptic number.

4709909638 is a deficient number, since it is larger than the sum of its proper divisors (3434488442).

4709909638 is a wasteful number, since it uses less digits than its factorization.

4709909638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 4709909638 is about 68628.7814113000. The cubic root of 4709909638 is about 1676.2451142217.

The spelling of 4709909638 in words is "four billion, seven hundred nine million, nine hundred nine thousand, six hundred thirty-eight".