2118893677 has 2 divisors, whose sum is σ = 2118893678. Its totient is φ = 2118893676.

The previous prime is 2118893663. The next prime is 2118893701. The reversal of 2118893677 is 7763988112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2111770116 + 7123561 = 45954^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118893677 - 2¹⁹ = 2118369389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118893477) by changing a digit.

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 as a sum of consecutive naturals, namely, 1059446838 + 1059446839.

It is an arithmetic number, because the mean of its divisors is an integer number (1059446839).

Almost surely, 2^2118893677 is an apocalyptic number.

It is an amenable number.

2118893677 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118893677 is an equidigital number, since it uses as much as digits as its factorization.

2118893677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 52.

The square root of 2118893677 is about 46031.4422650431. The cubic root of 2118893677 is about 1284.4081569511.

The spelling of 2118893677 in words is "two billion, one hundred eighteen million, eight hundred ninety-three thousand, six hundred seventy-seven".