2119708889 has 2 divisors, whose sum is σ = 2119708890. Its totient is φ = 2119708888.

The previous prime is 2119708813. The next prime is 2119708909. The reversal of 2119708889 is 9888079112.

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., 1659177289 + 460531600 = 40733^2 + 21460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119708889 - 2¹⁶ = 2119643353 is a prime.

It is a super-2 number, since 2×2119708889² = 8986331548211228642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2119708889.

It is not a weakly prime, because it can be changed into another prime (2119708289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059854444 + 1059854445.

It is an arithmetic number, because the mean of its divisors is an integer number (1059854445).

Almost surely, 2^2119708889 is an apocalyptic number.

It is an amenable number.

2119708889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2119708889 is an equidigital number, since it uses as much as digits as its factorization.

2119708889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 53.

The square root of 2119708889 is about 46040.2963609054. The cubic root of 2119708889 is about 1284.5728546425.

The spelling of 2119708889 in words is "two billion, one hundred nineteen million, seven hundred eight thousand, eight hundred eighty-nine".