12773318991 has 16 divisors (see below), whose sum is σ = 17195998464. Its totient is φ = 8433146304.

The previous prime is 12773318981. The next prime is 12773319011. The reversal of 12773318991 is 19981337721.

It is not a de Polignac number, because 12773318991 - 2¹¹ = 12773316943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12773318941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461651 + ... + 1470363.

It is an arithmetic number, because the mean of its divisors is an integer number (1074749904).

Almost surely, 2^12773318991 is an apocalyptic number.

12773318991 is a deficient number, since it is larger than the sum of its proper divisors (4422679473).

12773318991 is a wasteful number, since it uses less digits than its factorization.

12773318991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13390.

The product of its digits is 571536, while the sum is 51.

The spelling of 12773318991 in words is "twelve billion, seven hundred seventy-three million, three hundred eighteen thousand, nine hundred ninety-one".