9923244925439 has 4 divisors (see below), whose sum is σ = 9923269933320. Its totient is φ = 9923219917560.

The previous prime is 9923244925423. The next prime is 9923244925441. The reversal of 9923244925439 is 9345294423299.

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

It is a cyclic number.

It is not a de Polignac number, because 9923244925439 - 2⁴ = 9923244925423 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 (9923244925409) 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, 11898977 + ... + 12705594.

It is an arithmetic number, because the mean of its divisors is an integer number (2480817483330).

Almost surely, 2^{9923244925439} is an apocalyptic number.

9923244925439 is a deficient number, since it is larger than the sum of its proper divisors (25007881).

9923244925439 is a wasteful number, since it uses less digits than its factorization.

9923244925439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25007880.

The product of its digits is 151165440, while the sum is 65.

The spelling of 9923244925439 in words is "nine trillion, nine hundred twenty-three billion, two hundred forty-four million, nine hundred twenty-five thousand, four hundred thirty-nine".