12695934863 has 2 divisors, whose sum is σ = 12695934864. Its totient is φ = 12695934862.

The previous prime is 12695934851. The next prime is 12695934877. The reversal of 12695934863 is 36843959621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12695934863 - 2⁴ = 12695934847 is a prime.

It is a super-2 number, since 2×12695934863² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12695934799 and 12695934808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12695934263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6347967431 + 6347967432.

It is an arithmetic number, because the mean of its divisors is an integer number (6347967432).

Almost surely, 2^12695934863 is an apocalyptic number.

12695934863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12695934863 is an equidigital number, since it uses as much as digits as its factorization.

12695934863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 56.

The spelling of 12695934863 in words is "twelve billion, six hundred ninety-five million, nine hundred thirty-four thousand, eight hundred sixty-three".