2111281848928 has 144 divisors (see below), whose sum is σ = 5092866802800. Its totient is φ = 856678394880.

The previous prime is 2111281848901. The next prime is 2111281848959. The reversal of 2111281848928 is 8298481821112.

It is a super-2 number, since 2×2111281848928² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49701618 + ... + 49744078.

It is an arithmetic number, because the mean of its divisors is an integer number (35367130575).

Almost surely, 2^{2111281848928} is an apocalyptic number.

2111281848928 is a gapful number since it is divisible by the number (28) 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 2111281848928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2546433401400).

2111281848928 is an abundant number, since it is smaller than the sum of its proper divisors (2981584953872).

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

2111281848928 is a wasteful number, since it uses less digits than its factorization.

2111281848928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44173 (or 44158 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 55.

The spelling of 2111281848928 in words is "two trillion, one hundred eleven billion, two hundred eighty-one million, eight hundred forty-eight thousand, nine hundred twenty-eight".