9925786423 has 4 divisors (see below), whose sum is σ = 11343755920. Its totient is φ = 8507816928.

The previous prime is 9925786411. The next prime is 9925786483. The reversal of 9925786423 is 3246875299.

9925786423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3246875299 = 719 ⋅4515821.

It is a cyclic number.

It is not a de Polignac number, because 9925786423 - 2⁹ = 9925785911 is a prime.

It is a super-2 number, since 2×9925786423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9925786483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708984738 + ... + 708984751.

It is an arithmetic number, because the mean of its divisors is an integer number (2835938980).

Almost surely, 2^9925786423 is an apocalyptic number.

9925786423 is a deficient number, since it is larger than the sum of its proper divisors (1417969497).

9925786423 is a wasteful number, since it uses less digits than its factorization.

9925786423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417969496.

The product of its digits is 6531840, while the sum is 55.

The square root of 9925786423 is about 99628.2410915700. The cubic root of 9925786423 is about 2149.0918409297.

The spelling of 9925786423 in words is "nine billion, nine hundred twenty-five million, seven hundred eighty-six thousand, four hundred twenty-three".