2668297769 has 8 divisors (see below), whose sum is σ = 2679194952. Its totient is φ = 2657416320.

The previous prime is 2668297763. The next prime is 2668297783. The reversal of 2668297769 is 9677928662.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 280998169 + 2387299600 = 16763^2 + 48860^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2668297769 - 2¹⁶ = 2668232233 is a prime.

It is a super-2 number, since 2×2668297769² = 14239625968100754722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2668297763) 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, 429167 + ... + 435339.

It is an arithmetic number, because the mean of its divisors is an integer number (334899369).

Almost surely, 2^2668297769 is an apocalyptic number.

It is an amenable number.

2668297769 is a deficient number, since it is larger than the sum of its proper divisors (10897183).

2668297769 is a wasteful number, since it uses less digits than its factorization.

2668297769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7867.

The product of its digits is 27433728, while the sum is 62.

The square root of 2668297769 is about 51655.5686155907. The cubic root of 2668297769 is about 1387.0052268726.

The spelling of 2668297769 in words is "two billion, six hundred sixty-eight million, two hundred ninety-seven thousand, seven hundred sixty-nine".