12617717362 has 4 divisors (see below), whose sum is σ = 18926576046. Its totient is φ = 6308858680.

The previous prime is 12617717327. The next prime is 12617717363. The reversal of 12617717362 is 26371771621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26371771621 = 13 ⋅2028597817.

It can be written as a sum of positive squares in only one way, i.e., 8268446761 + 4349270601 = 90931^2 + 65949^2 .

It is not an unprimeable number, because it can be changed into a prime (12617717363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154429339 + ... + 3154429342.

Almost surely, 2^12617717362 is an apocalyptic number.

12617717362 is a deficient number, since it is larger than the sum of its proper divisors (6308858684).

12617717362 is an equidigital number, since it uses as much as digits as its factorization.

12617717362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308858683.

The product of its digits is 148176, while the sum is 43.

The spelling of 12617717362 in words is "twelve billion, six hundred seventeen million, seven hundred seventeen thousand, three hundred sixty-two".