20424463397 has 24 divisors (see below), whose sum is σ = 22737911040. Its totient is φ = 18328939200.

The previous prime is 20424463387. The next prime is 20424463399. The reversal of 20424463397 is 79336442402.

It is not a de Polignac number, because 20424463397 - 2⁸ = 20424463141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424463399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1190879 + ... + 1207907.

It is an arithmetic number, because the mean of its divisors is an integer number (947412960).

Almost surely, 2^20424463397 is an apocalyptic number.

It is an amenable number.

20424463397 is a deficient number, since it is larger than the sum of its proper divisors (2313447643).

20424463397 is a wasteful number, since it uses less digits than its factorization.

20424463397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17253 (or 17240 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 20424463397 in words is "twenty billion, four hundred twenty-four million, four hundred sixty-three thousand, three hundred ninety-seven".