12465776775 has 24 divisors (see below), whose sum is σ = 20613394944. Its totient is φ = 6647346400.

The previous prime is 12465776773. The next prime is 12465776801. The reversal of 12465776775 is 57767756421.

It is not a de Polignac number, because 12465776775 - 2¹ = 12465776773 is a prime.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465776773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 733120 + ... + 749930.

It is an arithmetic number, because the mean of its divisors is an integer number (858891456).

Almost surely, 2^12465776775 is an apocalyptic number.

12465776775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12465776775 is a deficient number, since it is larger than the sum of its proper divisors (8147618169).

12465776775 is a wasteful number, since it uses less digits than its factorization.

12465776775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711 (or 26706 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 57.

The spelling of 12465776775 in words is "twelve billion, four hundred sixty-five million, seven hundred seventy-six thousand, seven hundred seventy-five".