2668532345969 has 16 divisors (see below), whose sum is σ = 3135463901568. Its totient is φ = 2223158700672.

The previous prime is 2668532345959. The next prime is 2668532345989. The reversal of 2668532345969 is 9695432358662.

It is not a de Polignac number, because 2668532345969 - 2¹² = 2668532341873 is a prime.

It is a super-2 number, since 2×2668532345969² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2668532345899 and 2668532345908.

It is not an unprimeable number, because it can be changed into a prime (2668532345959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5158847 + ... + 5652500.

It is an arithmetic number, because the mean of its divisors is an integer number (195966493848).

Almost surely, 2^{2668532345969} is an apocalyptic number.

It is an amenable number.

2668532345969 is a deficient number, since it is larger than the sum of its proper divisors (466931555599).

2668532345969 is a wasteful number, since it uses less digits than its factorization.

2668532345969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812344.

The product of its digits is 503884800, while the sum is 68.

The spelling of 2668532345969 in words is "two trillion, six hundred sixty-eight billion, five hundred thirty-two million, three hundred forty-five thousand, nine hundred sixty-nine".