2120374178 has 8 divisors (see below), whose sum is σ = 3425219868. Its totient is φ = 978634224.

The previous prime is 2120374169. The next prime is 2120374199. The reversal of 2120374178 is 8714730212.

It can be written as a sum of positive squares in 2 ways, for example, as 1821326329 + 299047849 = 42677^2 + 17293^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40776401 + ... + 40776452.

Almost surely, 2^2120374178 is an apocalyptic number.

2120374178 is a deficient number, since it is larger than the sum of its proper divisors (1304845690).

2120374178 is a wasteful number, since it uses less digits than its factorization.

2120374178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81552868.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 2120374178 is about 46047.5208670347. The cubic root of 2120374178 is about 1284.7072320249.

The spelling of 2120374178 in words is "two billion, one hundred twenty million, three hundred seventy-four thousand, one hundred seventy-eight".