2159344889856 has 624 divisors, whose sum is σ = 7841946498048. Its totient is φ = 560779591680.

The previous prime is 2159344889803. The next prime is 2159344889857. The reversal of 2159344889856 is 6589884439512.

2159344889856 is a `hidden beast` number, since 2 + 1 + 5 + 9 + 3 + 4 + 488 + 98 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159344889857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 343458745 + ... + 343465031.

It is an arithmetic number, because the mean of its divisors is an integer number (12567221952).

Almost surely, 2^{2159344889856} 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 2159344889856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3920973249024).

2159344889856 is an abundant number, since it is smaller than the sum of its proper divisors (5682601608192).

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

2159344889856 is an equidigital number, since it uses as much as digits as its factorization.

2159344889856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6357 (or 6310 counting only the distinct ones).

The product of its digits is 597196800, while the sum is 72.

The spelling of 2159344889856 in words is "two trillion, one hundred fifty-nine billion, three hundred forty-four million, eight hundred eighty-nine thousand, eight hundred fifty-six".