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12168675917 = 79191536643
BaseRepresentation
bin10110101010100111…
…10100001001001101
31011102001111210012122
423111103310021031
5144410140112132
65331252542325
7610360016156
oct132523641115
934361453178
1012168675917
11518499a362
1224373219a5
1311bc0a2268
148361a892d
154b348d912
hex2d54f424d

12168675917 has 4 divisors (see below), whose sum is σ = 12170220480. Its totient is φ = 12167131356.

The previous prime is 12168675907. The next prime is 12168675919. The reversal of 12168675917 is 71957686121.

12168675917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12168675917 - 28 = 12168675661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12168675919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760403 + ... + 776240.

It is an arithmetic number, because the mean of its divisors is an integer number (3042555120).

Almost surely, 212168675917 is an apocalyptic number.

It is an amenable number.

12168675917 is a deficient number, since it is larger than the sum of its proper divisors (1544563).

12168675917 is an equidigital number, since it uses as much as digits as its factorization.

12168675917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544562.

The product of its digits is 1270080, while the sum is 53.

The spelling of 12168675917 in words is "twelve billion, one hundred sixty-eight million, six hundred seventy-five thousand, nine hundred seventeen".

Divisors: 1 7919 1536643 12168675917