12869400665 has 32 divisors (see below), whose sum is σ = 17209221120. Its totient is φ = 9159870400.

The previous prime is 12869400653. The next prime is 12869400683. The reversal of 12869400665 is 56600496821.

It is not a de Polignac number, because 12869400665 - 2¹⁸ = 12869138521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 727880 + ... + 745350.

It is an arithmetic number, because the mean of its divisors is an integer number (537788160).

Almost surely, 2^12869400665 is an apocalyptic number.

It is an amenable number.

12869400665 is a deficient number, since it is larger than the sum of its proper divisors (4339820455).

12869400665 is a wasteful number, since it uses less digits than its factorization.

12869400665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17773.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 12869400665 in words is "twelve billion, eight hundred sixty-nine million, four hundred thousand, six hundred sixty-five".