12007722617 has 6 divisors (see below), whose sum is σ = 13198571274. Its totient is φ = 10916111360.

The previous prime is 12007722611. The next prime is 12007722673. The reversal of 12007722617 is 71622770021.

It can be written as a sum of positive squares in only one way, i.e., 12000983401 + 6739216 = 109549^2 + 2596^2 .

It is not a de Polignac number, because 12007722617 - 2⁸ = 12007722361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12007722611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49618568 + ... + 49618809.

It is an arithmetic number, because the mean of its divisors is an integer number (2199761879).

Almost surely, 2^12007722617 is an apocalyptic number.

It is an amenable number.

12007722617 is a deficient number, since it is larger than the sum of its proper divisors (1190848657).

12007722617 is an equidigital number, since it uses as much as digits as its factorization.

12007722617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99237399 (or 99237388 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 35.

The spelling of 12007722617 in words is "twelve billion, seven million, seven hundred twenty-two thousand, six hundred seventeen".