12733686693 has 60 divisors (see below), whose sum is σ = 23108418060. Its totient is φ = 6716521728.

The previous prime is 12733686671. The next prime is 12733686727. The reversal of 12733686693 is 39668633721.

12733686693 is a `hidden beast` number, since 1 + 273 + 368 + 6 + 6 + 9 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4453960644 + 8279726049 = 66738^2 + 90993^2 .

It is not a de Polignac number, because 12733686693 - 2⁵ = 12733686661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12733687693) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 258253 + ... + 303581.

It is an arithmetic number, because the mean of its divisors is an integer number (385140301).

Almost surely, 2^12733686693 is an apocalyptic number.

12733686693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12733686693 is a deficient number, since it is larger than the sum of its proper divisors (10374731367).

12733686693 is an equidigital number, since it uses as much as digits as its factorization.

12733686693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45376 (or 45352 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 12733686693 in words is "twelve billion, seven hundred thirty-three million, six hundred eighty-six thousand, six hundred ninety-three".