2129047269 has 8 divisors (see below), whose sum is σ = 2853438912. Its totient is φ = 1412010240.

The previous prime is 2129047243. The next prime is 2129047321. The reversal of 2129047269 is 9627409212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2129047269 - 2⁵ = 2129047237 is a prime.

It is a super-2 number, since 2×2129047269² = 9065684547272716722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129047269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129042269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837977 + ... + 1839134.

It is an arithmetic number, because the mean of its divisors is an integer number (356679864).

Almost surely, 2^2129047269 is an apocalyptic number.

It is an amenable number.

2129047269 is a deficient number, since it is larger than the sum of its proper divisors (724391643).

2129047269 is a wasteful number, since it uses less digits than its factorization.

2129047269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677307.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 2129047269 is about 46141.6001998197. The cubic root of 2129047269 is about 1286.4564869697.

The spelling of 2129047269 in words is "two billion, one hundred twenty-nine million, forty-seven thousand, two hundred sixty-nine".