12694789654 has 8 divisors (see below), whose sum is σ = 19256141880. Its totient is φ = 6276075696.

The previous prime is 12694789631. The next prime is 12694789699. The reversal of 12694789654 is 45698749621.

It is a happy number.

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

It is a super-2 number, since 2×12694789654² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12694789592 and 12694789601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35659344 + ... + 35659699.

It is an arithmetic number, because the mean of its divisors is an integer number (2407017735).

Almost surely, 2^12694789654 is an apocalyptic number.

12694789654 is a deficient number, since it is larger than the sum of its proper divisors (6561352226).

12694789654 is an equidigital number, since it uses as much as digits as its factorization.

12694789654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71319134.

The product of its digits is 26127360, while the sum is 61.

The spelling of 12694789654 in words is "twelve billion, six hundred ninety-four million, seven hundred eighty-nine thousand, six hundred fifty-four".