4609636628 has 18 divisors (see below), whose sum is σ = 8220832074. Its totient is φ = 2260846224.

The previous prime is 4609636613. The next prime is 4609636631. The reversal of 4609636628 is 8266369064.

It can be written as a sum of positive squares in only one way, i.e., 4261739524 + 347897104 = 65282^2 + 18652^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 986225 + ... + 990887.

It is an arithmetic number, because the mean of its divisors is an integer number (456712893).

Almost surely, 2^4609636628 is an apocalyptic number.

It is an amenable number.

4609636628 is a deficient number, since it is larger than the sum of its proper divisors (3611195446).

4609636628 is an frugal number, since it uses more digits than its factorization.

4609636628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9383 (or 4718 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 50.

The square root of 4609636628 is about 67894.3048274301. The cubic root of 4609636628 is about 1664.2640445797.

The spelling of 4609636628 in words is "four billion, six hundred nine million, six hundred thirty-six thousand, six hundred twenty-eight".