2067243869 has 6 divisors (see below), whose sum is σ = 2073967866. Its totient is φ = 2060541600.

The previous prime is 2067243847. The next prime is 2067243883. The reversal of 2067243869 is 9683427602.

It can be written as a sum of positive squares in 3 ways, for example, as 398521369 + 1668722500 = 19963^2 + 40850^2 .

It is not a de Polignac number, because 2067243869 - 2¹² = 2067239773 is a prime.

It is a super-2 number, since 2×2067243869² = 8546994427836178322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2067243769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87419 + ... + 108519.

It is an arithmetic number, because the mean of its divisors is an integer number (345661311).

Almost surely, 2^2067243869 is an apocalyptic number.

It is an amenable number.

2067243869 is a deficient number, since it is larger than the sum of its proper divisors (6723997).

2067243869 is an frugal number, since it uses more digits than its factorization.

2067243869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21727 (or 21414 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 2067243869 is about 45466.9535926919. The cubic root of 2067243869 is about 1273.8860179368.

The spelling of 2067243869 in words is "two billion, sixty-seven million, two hundred forty-three thousand, eight hundred sixty-nine".