2319488639 has 4 divisors (see below), whose sum is σ = 2497910856. Its totient is φ = 2141066424.

The previous prime is 2319488629. The next prime is 2319488657. The reversal of 2319488639 is 9368849132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2319488639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2319488629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89211089 + ... + 89211114.

It is an arithmetic number, because the mean of its divisors is an integer number (624477714).

Almost surely, 2^2319488639 is an apocalyptic number.

2319488639 is a deficient number, since it is larger than the sum of its proper divisors (178422217).

2319488639 is a wasteful number, since it uses less digits than its factorization.

2319488639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178422216.

The product of its digits is 2239488, while the sum is 53.

The square root of 2319488639 is about 48161.0697451790. The cubic root of 2319488639 is about 1323.7239194515.

The spelling of 2319488639 in words is "two billion, three hundred nineteen million, four hundred eighty-eight thousand, six hundred thirty-nine".