2104778210 has 8 divisors (see below), whose sum is σ = 3788600796. Its totient is φ = 841911280.

The previous prime is 2104778209. The next prime is 2104778237. The reversal of 2104778210 is 128774012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1959744361 + 145033849 = 44269^2 + 12043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 105238901 + ... + 105238920.

Almost surely, 2^2104778210 is an apocalyptic number.

2104778210 is a deficient number, since it is larger than the sum of its proper divisors (1683822586).

2104778210 is a wasteful number, since it uses less digits than its factorization.

2104778210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210477828.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 2104778210 is about 45877.8618725851. The cubic root of 2104778210 is about 1281.5496794624.

The spelling of 2104778210 in words is "two billion, one hundred four million, seven hundred seventy-eight thousand, two hundred ten".