12628851565 has 16 divisors (see below), whose sum is σ = 16637627520. Its totient is φ = 9126112320.

The previous prime is 12628851563. The next prime is 12628851583. The reversal of 12628851565 is 56515882621.

It is not a de Polignac number, because 12628851565 - 2¹ = 12628851563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12628851563) 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, 722625 + ... + 739894.

It is an arithmetic number, because the mean of its divisors is an integer number (1039851720).

Almost surely, 2^12628851565 is an apocalyptic number.

It is an amenable number.

12628851565 is a deficient number, since it is larger than the sum of its proper divisors (4008775955).

12628851565 is a wasteful number, since it uses less digits than its factorization.

12628851565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462692.

The product of its digits is 1152000, while the sum is 49.

The spelling of 12628851565 in words is "twelve billion, six hundred twenty-eight million, eight hundred fifty-one thousand, five hundred sixty-five".