2120874755 has 4 divisors (see below), whose sum is σ = 2545049712. Its totient is φ = 1696699800.

The previous prime is 2120874737. The next prime is 2120874761. The reversal of 2120874755 is 5574780212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2120874755 - 2¹⁶ = 2120809219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212087471 + ... + 212087480.

It is an arithmetic number, because the mean of its divisors is an integer number (636262428).

Almost surely, 2^2120874755 is an apocalyptic number.

2120874755 is a deficient number, since it is larger than the sum of its proper divisors (424174957).

2120874755 is an equidigital number, since it uses as much as digits as its factorization.

2120874755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424174956.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 2120874755 is about 46052.9559854739. The cubic root of 2120874755 is about 1284.8083217757.

The spelling of 2120874755 in words is "two billion, one hundred twenty million, eight hundred seventy-four thousand, seven hundred fifty-five".