2678786448 has 80 divisors (see below), whose sum is σ = 7776585600. Its totient is φ = 788401152.

The previous prime is 2678786443. The next prime is 2678786449. The reversal of 2678786448 is 8446878762.

It is a junction number, because it is equal to n+sod(n) for n = 2678786391 and 2678786400.

It is not an unprimeable number, because it can be changed into a prime (2678786443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78973 + ... + 107676.

It is an arithmetic number, because the mean of its divisors is an integer number (97207320).

Almost surely, 2^2678786448 is an apocalyptic number.

It is an amenable number.

2678786448 is an abundant number, since it is smaller than the sum of its proper divisors (5097799152).

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

2678786448 is a wasteful number, since it uses less digits than its factorization.

2678786448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186696 (or 186690 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 60.

The square root of 2678786448 is about 51756.9941940217. The cubic root of 2678786448 is about 1388.8202207454.

The spelling of 2678786448 in words is "two billion, six hundred seventy-eight million, seven hundred eighty-six thousand, four hundred forty-eight".