20438463283199 has 8 divisors (see below), whose sum is σ = 22026590984832. Its totient is φ = 18852612469920.

The previous prime is 20438463283157. The next prime is 20438463283201. The reversal of 20438463283199 is 99138236483402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20438463283199 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 (20438463285199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569203439 + ... + 569239344.

It is an arithmetic number, because the mean of its divisors is an integer number (2753323873104).

Almost surely, 2^{20438463283199} is an apocalyptic number.

20438463283199 is a deficient number, since it is larger than the sum of its proper divisors (1588127701633).

20438463283199 is a wasteful number, since it uses less digits than its factorization.

20438463283199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138444177.

The product of its (nonzero) digits is 53747712, while the sum is 62.

The spelling of 20438463283199 in words is "twenty trillion, four hundred thirty-eight billion, four hundred sixty-three million, two hundred eighty-three thousand, one hundred ninety-nine".