4636661249 has 8 divisors (see below), whose sum is σ = 5165797248. Its totient is φ = 4125462160.

The previous prime is 4636661231. The next prime is 4636661251. The reversal of 4636661249 is 9421666364.

4636661249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4636661249 - 2¹⁶ = 4636595713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4636651249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4483682 + ... + 4484715.

It is an arithmetic number, because the mean of its divisors is an integer number (645724656).

Almost surely, 2^4636661249 is an apocalyptic number.

It is an amenable number.

4636661249 is a deficient number, since it is larger than the sum of its proper divisors (529135999).

4636661249 is a wasteful number, since it uses less digits than its factorization.

4636661249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8968455.

The product of its digits is 1119744, while the sum is 47.

The square root of 4636661249 is about 68093.0337773256. The cubic root of 4636661249 is about 1667.5100341579.

The spelling of 4636661249 in words is "four billion, six hundred thirty-six million, six hundred sixty-one thousand, two hundred forty-nine".