12917212775 has 6 divisors (see below), whose sum is σ = 16017343872. Its totient is φ = 10333770200.

The previous prime is 12917212769. The next prime is 12917212787. The reversal of 12917212775 is 57721271921.

It is not a de Polignac number, because 12917212775 - 2⁸ = 12917212519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258344231 + ... + 258344280.

It is an arithmetic number, because the mean of its divisors is an integer number (2669557312).

Almost surely, 2^12917212775 is an apocalyptic number.

12917212775 is a deficient number, since it is larger than the sum of its proper divisors (3100131097).

12917212775 is an equidigital number, since it uses as much as digits as its factorization.

12917212775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516688521 (or 516688516 counting only the distinct ones).

The product of its digits is 123480, while the sum is 44.

The spelling of 12917212775 in words is "twelve billion, nine hundred seventeen million, two hundred twelve thousand, seven hundred seventy-five".