2678389792 has 24 divisors (see below), whose sum is σ = 5678702316. Its totient is φ = 1236179712.

The previous prime is 2678389771. The next prime is 2678389793. The reversal of 2678389792 is 2979838762.

2678389792 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1960364176 + 718025616 = 44276^2 + 26796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2678389792.

It is not an unprimeable number, because it can be changed into a prime (2678389793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218803 + ... + 3219634.

Almost surely, 2^2678389792 is an apocalyptic number.

It is an amenable number.

2678389792 is an abundant number, since it is smaller than the sum of its proper divisors (3000312524).

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

2678389792 is a wasteful number, since it uses less digits than its factorization.

2678389792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438460 (or 6438452 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The square root of 2678389792 is about 51753.1621449356. The cubic root of 2678389792 is about 1388.7516684268.

The spelling of 2678389792 in words is "two billion, six hundred seventy-eight million, three hundred eighty-nine thousand, seven hundred ninety-two".