23138204615 has 8 divisors (see below), whose sum is σ = 27905373600. Its totient is φ = 18417544992.

The previous prime is 23138204591. The next prime is 23138204629. The reversal of 23138204615 is 51640283132.

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 23138204615 - 2³² = 18843237319 is a prime.

It is a congruent number.

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, 11626244 + ... + 11628233.

It is an arithmetic number, because the mean of its divisors is an integer number (3488171700).

Almost surely, 2^23138204615 is an apocalyptic number.

23138204615 is a deficient number, since it is larger than the sum of its proper divisors (4767168985).

23138204615 is a wasteful number, since it uses less digits than its factorization.

23138204615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23254681.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 23138204615 its reverse (51640283132), we get a palindrome (74778487747).

The spelling of 23138204615 in words is "twenty-three billion, one hundred thirty-eight million, two hundred four thousand, six hundred fifteen".