2678254788 has 24 divisors (see below), whose sum is σ = 6817376160. Its totient is φ = 811592320.

The previous prime is 2678254781. The next prime is 2678254819. The reversal of 2678254788 is 8874528762.

It is not an unprimeable number, because it can be changed into a prime (2678254781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10144773 + ... + 10145036.

It is an arithmetic number, because the mean of its divisors is an integer number (284057340).

Almost surely, 2^2678254788 is an apocalyptic number.

It is an amenable number.

2678254788 is an abundant number, since it is smaller than the sum of its proper divisors (4139121372).

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

2678254788 is a wasteful number, since it uses less digits than its factorization.

2678254788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289827 (or 20289825 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 57.

The square root of 2678254788 is about 51751.8578217246. The cubic root of 2678254788 is about 1388.7283347331.

The spelling of 2678254788 in words is "two billion, six hundred seventy-eight million, two hundred fifty-four thousand, seven hundred eighty-eight".