12855769499 has 4 divisors (see below), whose sum is σ = 12858887160. Its totient is φ = 12852651840.

The previous prime is 12855769489. The next prime is 12855769603. The reversal of 12855769499 is 99496755821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12855769499 - 2²⁸ = 12587334043 is a prime.

It is a super-2 number, since 2×12855769499² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12855769489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552637 + ... + 1560894.

It is an arithmetic number, because the mean of its divisors is an integer number (3214721790).

Almost surely, 2^12855769499 is an apocalyptic number.

12855769499 is a deficient number, since it is larger than the sum of its proper divisors (3117661).

12855769499 is an equidigital number, since it uses as much as digits as its factorization.

12855769499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117660.

The product of its digits is 48988800, while the sum is 65.

The spelling of 12855769499 in words is "twelve billion, eight hundred fifty-five million, seven hundred sixty-nine thousand, four hundred ninety-nine".