2678462638 has 16 divisors (see below), whose sum is σ = 4036919040. Its totient is φ = 1332836856.

The previous prime is 2678462609. The next prime is 2678462641. The reversal of 2678462638 is 8362648762.

It is a congruent number.

It is an unprimeable number.

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, 450795 + ... + 456697.

It is an arithmetic number, because the mean of its divisors is an integer number (252307440).

Almost surely, 2^2678462638 is an apocalyptic number.

2678462638 is a deficient number, since it is larger than the sum of its proper divisors (1358456402).

2678462638 is a wasteful number, since it uses less digits than its factorization.

2678462638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951.

The product of its digits is 4644864, while the sum is 52.

The square root of 2678462638 is about 51753.8659232332. The cubic root of 2678462638 is about 1388.7642585891.

The spelling of 2678462638 in words is "two billion, six hundred seventy-eight million, four hundred sixty-two thousand, six hundred thirty-eight".