2120078845 has 8 divisors (see below), whose sum is σ = 2549196000. Its totient is φ = 1692662160.

The previous prime is 2120078827. The next prime is 2120078869. The reversal of 2120078845 is 5488700212.

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

It is not a de Polignac number, because 2120078845 - 2⁵ = 2120078813 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 422371 + ... + 427360.

It is an arithmetic number, because the mean of its divisors is an integer number (318649500).

Almost surely, 2^2120078845 is an apocalyptic number.

It is an amenable number.

2120078845 is a deficient number, since it is larger than the sum of its proper divisors (429117155).

2120078845 is an equidigital number, since it uses as much as digits as its factorization.

2120078845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850235.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 2120078845 is about 46044.3139269118. The cubic root of 2120078845 is about 1284.6475831099.

The spelling of 2120078845 in words is "two billion, one hundred twenty million, seventy-eight thousand, eight hundred forty-five".