2169119399 has 4 divisors (see below), whose sum is σ = 2169313536. Its totient is φ = 2168925264.

The previous prime is 2169119377. The next prime is 2169119423. The reversal of 2169119399 is 9939119612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2169119399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169119999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79214 + ... + 103019.

It is an arithmetic number, because the mean of its divisors is an integer number (542328384).

Almost surely, 2^2169119399 is an apocalyptic number.

2169119399 is a deficient number, since it is larger than the sum of its proper divisors (194137).

2169119399 is a wasteful number, since it uses less digits than its factorization.

2169119399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194136.

The product of its digits is 236196, while the sum is 50.

The square root of 2169119399 is about 46573.8059320902. The cubic root of 2169119399 is about 1294.4774403624.

The spelling of 2169119399 in words is "two billion, one hundred sixty-nine million, one hundred nineteen thousand, three hundred ninety-nine".