2118990479 has 2 divisors, whose sum is σ = 2118990480. Its totient is φ = 2118990478.

The previous prime is 2118990451. The next prime is 2118990521. The reversal of 2118990479 is 9740998112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2118990479 - 2²⁴ = 2102213263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118990439) 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, 1059495239 + 1059495240.

It is an arithmetic number, because the mean of its divisors is an integer number (1059495240).

Almost surely, 2^2118990479 is an apocalyptic number.

2118990479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118990479 is an equidigital number, since it uses as much as digits as its factorization.

2118990479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 2118990479 is about 46032.4937299730. The cubic root of 2118990479 is about 1284.4277161180.

The spelling of 2118990479 in words is "two billion, one hundred eighteen million, nine hundred ninety thousand, four hundred seventy-nine".