12693688255 has 8 divisors (see below), whose sum is σ = 15250586400. Its totient is φ = 10142843616.

The previous prime is 12693688253. The next prime is 12693688277. The reversal of 12693688255 is 55288639621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12693688255 - 2¹ = 12693688253 is a prime.

It is a super-2 number, since 2×12693688255² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12693688196 and 12693688205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693688253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1508760 + ... + 1517149.

It is an arithmetic number, because the mean of its divisors is an integer number (1906323300).

Almost surely, 2^12693688255 is an apocalyptic number.

12693688255 is a deficient number, since it is larger than the sum of its proper divisors (2556898145).

12693688255 is an equidigital number, since it uses as much as digits as its factorization.

12693688255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026753.

The product of its digits is 6220800, while the sum is 55.

The spelling of 12693688255 in words is "twelve billion, six hundred ninety-three million, six hundred eighty-eight thousand, two hundred fifty-five".