2269651869 has 12 divisors (see below), whose sum is σ = 3284833500. Its totient is φ = 1510125504.

The previous prime is 2269651841. The next prime is 2269651873. The reversal of 2269651869 is 9681569622.

It is a happy number.

2269651869 is a `hidden beast` number, since 2 + 2 + 69 + 6 + 518 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1432244025 + 837407844 = 37845^2 + 28938^2 .

It is not a de Polignac number, because 2269651869 - 2⁸ = 2269651613 is a prime.

It is a super-2 number, since 2×2269651869² = 10302639212910386322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2269651889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243144 + ... + 252305.

It is an arithmetic number, because the mean of its divisors is an integer number (273736125).

Almost surely, 2^2269651869 is an apocalyptic number.

It is an amenable number.

2269651869 is a deficient number, since it is larger than the sum of its proper divisors (1015181631).

2269651869 is a wasteful number, since it uses less digits than its factorization.

2269651869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495964 (or 495961 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 2269651869 is about 47640.8634367598. The cubic root of 2269651869 is about 1314.1746412721.

The spelling of 2269651869 in words is "two billion, two hundred sixty-nine million, six hundred fifty-one thousand, eight hundred sixty-nine".