12456802469 has 4 divisors (see below), whose sum is σ = 12793472844. Its totient is φ = 12120132096.

The previous prime is 12456802433. The next prime is 12456802471. The reversal of 12456802469 is 96420865421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11548081444 + 908721025 = 107462^2 + 30145^2 .

It is a cyclic number.

It is not a de Polignac number, because 12456802469 - 2⁸ = 12456802213 is a prime.

It is a super-2 number, since 2×12456802469² (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 (12456802429) 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, 168335132 + ... + 168335205.

It is an arithmetic number, because the mean of its divisors is an integer number (3198368211).

Almost surely, 2^12456802469 is an apocalyptic number.

It is an amenable number.

12456802469 is a deficient number, since it is larger than the sum of its proper divisors (336670375).

12456802469 is an equidigital number, since it uses as much as digits as its factorization.

12456802469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336670374.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 12456802469 in words is "twelve billion, four hundred fifty-six million, eight hundred two thousand, four hundred sixty-nine".