2778603466 has 16 divisors (see below), whose sum is σ = 4240342080. Its totient is φ = 1365176160.

The previous prime is 2778603433. The next prime is 2778603479. The reversal of 2778603466 is 6643068772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450886 + ... + 457006.

It is an arithmetic number, because the mean of its divisors is an integer number (265021380).

Almost surely, 2^2778603466 is an apocalyptic number.

2778603466 is a deficient number, since it is larger than the sum of its proper divisors (1461738614).

2778603466 is a wasteful number, since it uses less digits than its factorization.

2778603466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10029.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The square root of 2778603466 is about 52712.4602537199. The cubic root of 2778603466 is about 1405.8603775217.

The spelling of 2778603466 in words is "two billion, seven hundred seventy-eight million, six hundred three thousand, four hundred sixty-six".