2099195278 has 16 divisors (see below), whose sum is σ = 3315755520. Its totient is φ = 993984696.

The previous prime is 2099195269. The next prime is 2099195281. The reversal of 2099195278 is 8725919902.

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 7 ways as a sum of consecutive naturals, for example, 111625 + ... + 129067.

It is an arithmetic number, because the mean of its divisors is an integer number (207234720).

Almost surely, 2^2099195278 is an apocalyptic number.

2099195278 is a deficient number, since it is larger than the sum of its proper divisors (1216560242).

2099195278 is a wasteful number, since it uses less digits than its factorization.

2099195278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20631.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 2099195278 is about 45816.9758713951. The cubic root of 2099195278 is about 1280.4155710374.

The spelling of 2099195278 in words is "two billion, ninety-nine million, one hundred ninety-five thousand, two hundred seventy-eight".