2678258012 has 12 divisors (see below), whose sum is σ = 4933633320. Its totient is φ = 1268648496.

The previous prime is 2678258003. The next prime is 2678258029. The reversal of 2678258012 is 2108528762.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17620043 + ... + 17620194.

It is an arithmetic number, because the mean of its divisors is an integer number (411136110).

Almost surely, 2^2678258012 is an apocalyptic number.

It is an amenable number.

2678258012 is a deficient number, since it is larger than the sum of its proper divisors (2255375308).

2678258012 is a wasteful number, since it uses less digits than its factorization.

2678258012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35240260 (or 35240258 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 2678258012 is about 51751.8889703555. Note that the first 3 decimals coincide. The cubic root of 2678258012 is about 1388.7288919689.

The spelling of 2678258012 in words is "two billion, six hundred seventy-eight million, two hundred fifty-eight thousand, twelve".