2851666404 has 24 divisors (see below), whose sum is σ = 6665598240. Its totient is φ = 948882624.

The previous prime is 2851666387. The next prime is 2851666423. The reversal of 2851666404 is 4046661582.

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 7 ways as a sum of consecutive naturals, for example, 201994 + ... + 215649.

It is an arithmetic number, because the mean of its divisors is an integer number (277733260).

Almost surely, 2^2851666404 is an apocalyptic number.

It is an amenable number.

2851666404 is an abundant number, since it is smaller than the sum of its proper divisors (3813931836).

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

2851666404 is a wasteful number, since it uses less digits than its factorization.

2851666404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418219 (or 418217 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 2851666404 is about 53400.9962828410. The cubic root of 2851666404 is about 1418.0762158786.

The spelling of 2851666404 in words is "two billion, eight hundred fifty-one million, six hundred sixty-six thousand, four hundred four".