4611648639 has 16 divisors (see below), whose sum is σ = 6649574400. Its totient is φ = 2826057696.

The previous prime is 4611648623. The next prime is 4611648677. The reversal of 4611648639 is 9368461164.

4611648639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4611648639 - 2⁴ = 4611648623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4611648619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238059 + ... + 256700.

It is an arithmetic number, because the mean of its divisors is an integer number (415598400).

Almost surely, 2^4611648639 is an apocalyptic number.

4611648639 is a deficient number, since it is larger than the sum of its proper divisors (2037925761).

4611648639 is a wasteful number, since it uses less digits than its factorization.

4611648639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495014.

The product of its digits is 746496, while the sum is 48.

The square root of 4611648639 is about 67909.1204404828. The cubic root of 4611648639 is about 1664.5061482975.

The spelling of 4611648639 in words is "four billion, six hundred eleven million, six hundred forty-eight thousand, six hundred thirty-nine".