12693888871 has 2 divisors, whose sum is σ = 12693888872. Its totient is φ = 12693888870.

The previous prime is 12693888863. The next prime is 12693888913. The reversal of 12693888871 is 17888839621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12693888871 - 2³ = 12693888863 is a prime.

It is a super-2 number, since 2×12693888871² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12693888811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6346944435 + 6346944436.

It is an arithmetic number, because the mean of its divisors is an integer number (6346944436).

Almost surely, 2^12693888871 is an apocalyptic number.

12693888871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12693888871 is an equidigital number, since it uses as much as digits as its factorization.

12693888871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 61.

The spelling of 12693888871 in words is "twelve billion, six hundred ninety-three million, eight hundred eighty-eight thousand, eight hundred seventy-one".