16424342397 has 48 divisors (see below), whose sum is σ = 24663366000. Its totient is φ = 10524856320.

The previous prime is 16424342383. The next prime is 16424342411. The reversal of 16424342397 is 79324342461.

16424342397 is a `hidden beast` number, since 16 + 4 + 243 + 4 + 2 + 397 = 666.

It is an interprime number because it is at equal distance from previous prime (16424342383) and next prime (16424342411).

It can be written as a sum of positive squares in 8 ways, for example, as 349652601 + 16074689796 = 18699^2 + 126786^2 .

It is not a de Polignac number, because 16424342397 - 2¹⁹ = 16423818109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16424342317) 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 47 ways as a sum of consecutive naturals, for example, 11460793 + ... + 11462225.

It is an arithmetic number, because the mean of its divisors is an integer number (513820125).

Almost surely, 2^16424342397 is an apocalyptic number.

It is an amenable number.

16424342397 is a deficient number, since it is larger than the sum of its proper divisors (8239023603).

16424342397 is a wasteful number, since it uses less digits than its factorization.

16424342397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1915 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The spelling of 16424342397 in words is "sixteen billion, four hundred twenty-four million, three hundred forty-two thousand, three hundred ninety-seven".