2163838273344 has 896 divisors, whose sum is σ = 7589642895360. Its totient is φ = 597657139200.

The previous prime is 2163838273343. The next prime is 2163838273357. The reversal of 2163838273344 is 4433728383612.

2163838273344 is a `hidden beast` number, since 2 + 163 + 8 + 382 + 73 + 34 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163838273343) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 908029977 + ... + 908032359.

Almost surely, 2^{2163838273344} is an apocalyptic number.

2163838273344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2163838273344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3794821447680).

2163838273344 is an abundant number, since it is smaller than the sum of its proper divisors (5425804622016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163838273344 is a wasteful number, since it uses less digits than its factorization.

2163838273344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536 (or 2520 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 54.

The spelling of 2163838273344 in words is "two trillion, one hundred sixty-three billion, eight hundred thirty-eight million, two hundred seventy-three thousand, three hundred forty-four".