2120937877 has 2 divisors, whose sum is σ = 2120937878. Its totient is φ = 2120937876.

The previous prime is 2120937857. The next prime is 2120937887. The reversal of 2120937877 is 7787390212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2082918321 + 38019556 = 45639^2 + 6166^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120937877 - 2¹⁵ = 2120905109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120937857) by changing a digit.

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 as a sum of consecutive naturals, namely, 1060468938 + 1060468939.

It is an arithmetic number, because the mean of its divisors is an integer number (1060468939).

Almost surely, 2^2120937877 is an apocalyptic number.

It is an amenable number.

2120937877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120937877 is an equidigital number, since it uses as much as digits as its factorization.

2120937877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 2120937877 is about 46053.6413001187. The cubic root of 2120937877 is about 1284.8210679105.

The spelling of 2120937877 in words is "two billion, one hundred twenty million, nine hundred thirty-seven thousand, eight hundred seventy-seven".