2069391266 has 8 divisors (see below), whose sum is σ = 3286680300. Its totient is φ = 973831168.

The previous prime is 2069391223. The next prime is 2069391277. The reversal of 2069391266 is 6621939602.

It can be written as a sum of positive squares in 2 ways, for example, as 2041142041 + 28249225 = 45179^2 + 5315^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 30432191 + ... + 30432258.

Almost surely, 2^2069391266 is an apocalyptic number.

2069391266 is a deficient number, since it is larger than the sum of its proper divisors (1217289034).

2069391266 is a wasteful number, since it uses less digits than its factorization.

2069391266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60864468.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 2069391266 is about 45490.5623838616. The cubic root of 2069391266 is about 1274.3269580696.

The spelling of 2069391266 in words is "two billion, sixty-nine million, three hundred ninety-one thousand, two hundred sixty-six".