2678081384 has 48 divisors (see below), whose sum is σ = 5526245760. Its totient is φ = 1215799200.

The previous prime is 2678081381. The next prime is 2678081389. The reversal of 2678081384 is 4831808762.

It is not an unprimeable number, because it can be changed into a prime (2678081381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1248617 + ... + 1250759.

It is an arithmetic number, because the mean of its divisors is an integer number (115130120).

Almost surely, 2^2678081384 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 2678081384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2763122880).

2678081384 is an abundant number, since it is smaller than the sum of its proper divisors (2848164376).

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

2678081384 is a wasteful number, since it uses less digits than its factorization.

2678081384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462 (or 3447 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 2678081384 is about 51750.1824537846. The cubic root of 2678081384 is about 1388.6983629462.

The spelling of 2678081384 in words is "two billion, six hundred seventy-eight million, eighty-one thousand, three hundred eighty-four".