2170273878 has 16 divisors (see below), whose sum is σ = 4822830960. Its totient is φ = 723424608.

The previous prime is 2170273843. The next prime is 2170273883. The reversal of 2170273878 is 8783720712.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20095075 + ... + 20095182.

It is an arithmetic number, because the mean of its divisors is an integer number (301426935).

Almost surely, 2^2170273878 is an apocalyptic number.

2170273878 is an abundant number, since it is smaller than the sum of its proper divisors (2652557082).

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

2170273878 is a wasteful number, since it uses less digits than its factorization.

2170273878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40190268 (or 40190262 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 2170273878 is about 46586.1983638931. The cubic root of 2170273878 is about 1294.7070545810.

The spelling of 2170273878 in words is "two billion, one hundred seventy million, two hundred seventy-three thousand, eight hundred seventy-eight".