12691866094 has 8 divisors (see below), whose sum is σ = 19183126248. Its totient is φ = 6297490680.

The previous prime is 12691866091. The next prime is 12691866127. The reversal of 12691866094 is 49066819621.

It is a happy number.

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

It is a super-3 number, since 3×12691866094³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12691866091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24220857 + ... + 24221380.

It is an arithmetic number, because the mean of its divisors is an integer number (2397890781).

Almost surely, 2^12691866094 is an apocalyptic number.

12691866094 is a deficient number, since it is larger than the sum of its proper divisors (6491260154).

12691866094 is a wasteful number, since it uses less digits than its factorization.

12691866094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48442370.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 12691866094 in words is "twelve billion, six hundred ninety-one million, eight hundred sixty-six thousand, ninety-four".