12662884469 has 8 divisors (see below), whose sum is σ = 13410214488. Its totient is φ = 11915827200.

The previous prime is 12662884463. The next prime is 12662884471. The reversal of 12662884469 is 96448826621.

It can be written as a sum of positive squares in 4 ways, for example, as 6689604100 + 5973280369 = 81790^2 + 77287^2 .

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 12662884469 - 2⁴ = 12662884453 is a prime.

It is a super-2 number, since 2×12662884469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662884463) 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, 31589 + ... + 162245.

It is an arithmetic number, because the mean of its divisors is an integer number (1676276811).

Almost surely, 2^12662884469 is an apocalyptic number.

It is an amenable number.

12662884469 is a deficient number, since it is larger than the sum of its proper divisors (747330019).

12662884469 is a wasteful number, since it uses less digits than its factorization.

12662884469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136375.

The product of its digits is 7962624, while the sum is 56.

The spelling of 12662884469 in words is "twelve billion, six hundred sixty-two million, eight hundred eighty-four thousand, four hundred sixty-nine".