2119689252 has 18 divisors (see below), whose sum is σ = 5358103478. Its totient is φ = 706563072.

The previous prime is 2119689241. The next prime is 2119689317. The reversal of 2119689252 is 2529869112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1850204196 + 269485056 = 43014^2 + 16416^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2119689198 and 2119689207.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 29440093 + ... + 29440164.

Almost surely, 2^2119689252 is an apocalyptic number.

It is an amenable number.

2119689252 is an abundant number, since it is smaller than the sum of its proper divisors (3238414226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2119689252 is a wasteful number, since it uses less digits than its factorization.

2119689252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58880267 (or 58880262 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 2119689252 is about 46040.0831015757. The cubic root of 2119689252 is about 1284.5688878658.

The spelling of 2119689252 in words is "two billion, one hundred nineteen million, six hundred eighty-nine thousand, two hundred fifty-two".