4631643236 has 24 divisors (see below), whose sum is σ = 8846270496. Its totient is φ = 2104329920.

The previous prime is 4631643229. The next prime is 4631643253. The reversal of 4631643236 is 6323461364.

It is a self number, because there is not a number n which added to its sum of digits gives 4631643236.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78155 + ... + 123981.

It is an arithmetic number, because the mean of its divisors is an integer number (368594604).

Almost surely, 2^4631643236 is an apocalyptic number.

It is an amenable number.

4631643236 is a deficient number, since it is larger than the sum of its proper divisors (4214627260).

4631643236 is a wasteful number, since it uses less digits than its factorization.

4631643236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48139 (or 48137 counting only the distinct ones).

The product of its digits is 186624, while the sum is 38.

The square root of 4631643236 is about 68056.1770598379. The cubic root of 4631643236 is about 1666.9082644077.

The spelling of 4631643236 in words is "four billion, six hundred thirty-one million, six hundred forty-three thousand, two hundred thirty-six".