2280989256378 has 128 divisors (see below), whose sum is σ = 5327864709120. Its totient is φ = 637562016000.

The previous prime is 2280989256373. The next prime is 2280989256379. The reversal of 2280989256378 is 8736529890822.

2280989256378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2280989256378² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2280989256373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 649667643 + ... + 649671153.

It is an arithmetic number, because the mean of its divisors is an integer number (41623943040).

Almost surely, 2^{2280989256378} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2280989256378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2663932354560).

2280989256378 is an abundant number, since it is smaller than the sum of its proper divisors (3046875452742).

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

2280989256378 is a wasteful number, since it uses less digits than its factorization.

2280989256378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884.

The product of its (nonzero) digits is 209018880, while the sum is 69.

The spelling of 2280989256378 in words is "two trillion, two hundred eighty billion, nine hundred eighty-nine million, two hundred fifty-six thousand, three hundred seventy-eight".