2081944174321 has 24 divisors (see below), whose sum is σ = 2409822233280. Its totient is φ = 1793776929120.

The previous prime is 2081944174301. The next prime is 2081944174337. The reversal of 2081944174321 is 1234714491802.

It is a happy number.

It is not a de Polignac number, because 2081944174321 - 2²¹ = 2081942077169 is a prime.

It is a super-2 number, since 2×2081944174321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2081944174301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3128275 + ... + 3734968.

It is an arithmetic number, because the mean of its divisors is an integer number (100409259720).

Almost surely, 2^{2081944174321} is an apocalyptic number.

It is an amenable number.

2081944174321 is a deficient number, since it is larger than the sum of its proper divisors (327878058959).

2081944174321 is a wasteful number, since it uses less digits than its factorization.

2081944174321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863397 (or 6863386 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 2081944174321 in words is "two trillion, eighty-one billion, nine hundred forty-four million, one hundred seventy-four thousand, three hundred twenty-one".