2173834718448 has 160 divisors (see below), whose sum is σ = 5905982564352. Its totient is φ = 687662131200.

The previous prime is 2173834718437. The next prime is 2173834718479. The reversal of 2173834718448 is 8448174383712.

It is a happy number.

It is a Cunningham number, because it is equal to 1474393²-1.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2173834718391 and 2173834718400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403980718 + ... + 403986098.

Almost surely, 2^{2173834718448} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173834718448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2952991282176).

2173834718448 is an abundant number, since it is smaller than the sum of its proper divisors (3732147845904).

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

2173834718448 is a wasteful number, since it uses less digits than its factorization.

2173834718448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223 (or 8217 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 60.

The spelling of 2173834718448 in words is "two trillion, one hundred seventy-three billion, eight hundred thirty-four million, seven hundred eighteen thousand, four hundred forty-eight".