23184391397 has 16 divisors (see below), whose sum is σ = 23571136512. Its totient is φ = 22801686960.

The previous prime is 23184391369. The next prime is 23184391403. The reversal of 23184391397 is 79319348132.

It is a cyclic number.

It is not a de Polignac number, because 23184391397 - 2¹⁴ = 23184375013 is a prime.

It is a super-2 number, since 2×23184391397² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23184391367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8377508 + ... + 8380274.

It is an arithmetic number, because the mean of its divisors is an integer number (1473196032).

Almost surely, 2^23184391397 is an apocalyptic number.

It is an amenable number.

23184391397 is a deficient number, since it is larger than the sum of its proper divisors (386745115).

23184391397 is a wasteful number, since it uses less digits than its factorization.

23184391397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448.

The product of its digits is 979776, while the sum is 50.

The spelling of 23184391397 in words is "twenty-three billion, one hundred eighty-four million, three hundred ninety-one thousand, three hundred ninety-seven".