2668429069 has 2 divisors, whose sum is σ = 2668429070. Its totient is φ = 2668429068.

The previous prime is 2668429063. The next prime is 2668429087. The reversal of 2668429069 is 9609248662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2666483044 + 1946025 = 51638^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2668429069 - 2⁵ = 2668429037 is a prime.

It is a super-4 number, since 4×2668429069⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2668429063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334214534 + 1334214535.

It is an arithmetic number, because the mean of its divisors is an integer number (1334214535).

Almost surely, 2^2668429069 is an apocalyptic number.

It is an amenable number.

2668429069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668429069 is an equidigital number, since it uses as much as digits as its factorization.

2668429069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The square root of 2668429069 is about 51656.8395181122. The cubic root of 2668429069 is about 1387.0279768072.

The spelling of 2668429069 in words is "two billion, six hundred sixty-eight million, four hundred twenty-nine thousand, sixty-nine".