23740781339 has 6 divisors (see below), whose sum is σ = 25899591684. Its totient is φ = 21582063920.

The previous prime is 23740781321. The next prime is 23740781377. The reversal of 23740781339 is 93318704732.

It is a happy number.

It is not a de Polignac number, because 23740781339 - 2⁸ = 23740781083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23740781293 and 23740781302.

It is not an unprimeable number, because it can be changed into a prime (23740781399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 487799 + ... + 534255.

It is an arithmetic number, because the mean of its divisors is an integer number (4316598614).

Almost surely, 2^23740781339 is an apocalyptic number.

23740781339 is a deficient number, since it is larger than the sum of its proper divisors (2158810345).

23740781339 is an frugal number, since it uses more digits than its factorization.

23740781339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92925 (or 46468 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 23740781339 in words is "twenty-three billion, seven hundred forty million, seven hundred eighty-one thousand, three hundred thirty-nine".