2678327172444 has 192 divisors, whose sum is σ = 8046143078400. Its totient is φ = 672951628800.

The previous prime is 2678327172439. The next prime is 2678327172461. The reversal of 2678327172444 is 4442717238762.

It is a super-2 number, since 2×2678327172444² (a number of 26 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 63 ways as a sum of consecutive naturals, for example, 74714277 + ... + 74750115.

It is an arithmetic number, because the mean of its divisors is an integer number (41906995200).

Almost surely, 2^{2678327172444} 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 2678327172444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4023071539200).

2678327172444 is an abundant number, since it is smaller than the sum of its proper divisors (5367815905956).

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

2678327172444 is a wasteful number, since it uses less digits than its factorization.

2678327172444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38504 (or 38502 counting only the distinct ones).

The product of its digits is 25288704, while the sum is 57.

The spelling of 2678327172444 in words is "two trillion, six hundred seventy-eight billion, three hundred twenty-seven million, one hundred seventy-two thousand, four hundred forty-four".