23938810789 has 4 divisors (see below), whose sum is σ = 23940605260. Its totient is φ = 23937016320.

The previous prime is 23938810783. The next prime is 23938810801. The reversal of 23938810789 is 98701883932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4010688900 + 19928121889 = 63330^2 + 141167^2 .

It is a cyclic number.

It is not a de Polignac number, because 23938810789 - 2¹⁹ = 23938286501 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 (23938810783) 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, 877074 + ... + 903955.

It is an arithmetic number, because the mean of its divisors is an integer number (5985151315).

Almost surely, 2^23938810789 is an apocalyptic number.

It is an amenable number.

23938810789 is a deficient number, since it is larger than the sum of its proper divisors (1794471).

23938810789 is a wasteful number, since it uses less digits than its factorization.

23938810789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794470.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 23938810789 in words is "twenty-three billion, nine hundred thirty-eight million, eight hundred ten thousand, seven hundred eighty-nine".