12776377503 has 4 divisors (see below), whose sum is σ = 17035170008. Its totient is φ = 8517585000.

The previous prime is 12776377477. The next prime is 12776377529. The reversal of 12776377503 is 30577367721.

It is a happy number.

12776377503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (12776377477) and next prime (12776377529).

It is not a de Polignac number, because 12776377503 - 2⁸ = 12776377247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776377543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129396248 + ... + 2129396253.

It is an arithmetic number, because the mean of its divisors is an integer number (4258792502).

Almost surely, 2^12776377503 is an apocalyptic number.

12776377503 is a deficient number, since it is larger than the sum of its proper divisors (4258792505).

12776377503 is an equidigital number, since it uses as much as digits as its factorization.

12776377503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258792504.

The product of its (nonzero) digits is 1296540, while the sum is 48.

The spelling of 12776377503 in words is "twelve billion, seven hundred seventy-six million, three hundred seventy-seven thousand, five hundred three".