12654379017 has 18 divisors (see below), whose sum is σ = 21262800858. Its totient is φ = 7231073472.

The previous prime is 12654379009. The next prime is 12654379019. The reversal of 12654379017 is 71097345621.

12654379017 is a `hidden beast` number, since 1 + 2 + 6 + 543 + 7 + 90 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12556547136 + 97831881 = 112056^2 + 9891^2 .

It is not a de Polignac number, because 12654379017 - 2³ = 12654379009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12654379019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14346928 + ... + 14347809.

Almost surely, 2^12654379017 is an apocalyptic number.

It is an amenable number.

12654379017 is a deficient number, since it is larger than the sum of its proper divisors (8608421841).

12654379017 is a wasteful number, since it uses less digits than its factorization.

12654379017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28694757 (or 28694747 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 12654379017 in words is "twelve billion, six hundred fifty-four million, three hundred seventy-nine thousand, seventeen".