4687578909 has 24 divisors (see below), whose sum is σ = 7461373920. Its totient is φ = 2817575712.

The previous prime is 4687578893. The next prime is 4687578941. The reversal of 4687578909 is 9098757864.

It is not a de Polignac number, because 4687578909 - 2⁴ = 4687578893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4687578979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460839 + ... + 470900.

It is an arithmetic number, because the mean of its divisors is an integer number (310890580).

Almost surely, 2^4687578909 is an apocalyptic number.

It is an amenable number.

4687578909 is a deficient number, since it is larger than the sum of its proper divisors (2773795011).

4687578909 is a wasteful number, since it uses less digits than its factorization.

4687578909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931801 (or 931798 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The square root of 4687578909 is about 68465.8959555778. The cubic root of 4687578909 is about 1673.5917661367.

The spelling of 4687578909 in words is "four billion, six hundred eighty-seven million, five hundred seventy-eight thousand, nine hundred nine".