2120849445984 has 96 divisors (see below), whose sum is σ = 5679606612960. Its totient is φ = 692820344832.

The previous prime is 2120849445859. The next prime is 2120849446021. The reversal of 2120849445984 is 4895449480212.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132877 + ... + 2063820.

It is an arithmetic number, because the mean of its divisors is an integer number (59162568885).

Almost surely, 2^{2120849445984} is an apocalyptic number.

2120849445984 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 2120849445984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2839803306480).

2120849445984 is an abundant number, since it is smaller than the sum of its proper divisors (3558757166976).

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

2120849445984 is a wasteful number, since it uses less digits than its factorization.

2120849445984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196912 (or 2196904 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 2120849445984 in words is "two trillion, one hundred twenty billion, eight hundred forty-nine million, four hundred forty-five thousand, nine hundred eighty-four".