2100210192878 has 32 divisors (see below), whose sum is σ = 3627362304000. Its totient is φ = 893349052704.

The previous prime is 2100210192859. The next prime is 2100210192923. The reversal of 2100210192878 is 8782910120012.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2274401 + ... + 3061587.

It is an arithmetic number, because the mean of its divisors is an integer number (113355072000).

Almost surely, 2^{2100210192878} is an apocalyptic number.

2100210192878 is a deficient number, since it is larger than the sum of its proper divisors (1527152111122).

2100210192878 is a wasteful number, since it uses less digits than its factorization.

2100210192878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788624.

The product of its (nonzero) digits is 32256, while the sum is 41.

The spelling of 2100210192878 in words is "two trillion, one hundred billion, two hundred ten million, one hundred ninety-two thousand, eight hundred seventy-eight".