2120330778 has 16 divisors (see below), whose sum is σ = 4242133056. Its totient is φ = 706531680.

The previous prime is 2120330759. The next prime is 2120330801. The reversal of 2120330778 is 8770330212.

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 7 ways as a sum of consecutive naturals, for example, 42118 + ... + 77553.

It is an arithmetic number, because the mean of its divisors is an integer number (265133316).

Almost surely, 2^2120330778 is an apocalyptic number.

2120330778 is an abundant number, since it is smaller than the sum of its proper divisors (2121802278).

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

2120330778 is a wasteful number, since it uses less digits than its factorization.

2120330778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122629.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2120330778 is about 46047.0496123259. The cubic root of 2120330778 is about 1284.6984667993.

The spelling of 2120330778 in words is "two billion, one hundred twenty million, three hundred thirty thousand, seven hundred seventy-eight".