18429456809017 has 8 divisors (see below), whose sum is σ = 18477044726400. Its totient is φ = 18381869976624.

The previous prime is 18429456808969. The next prime is 18429456809041. The reversal of 18429456809017 is 71090865492481.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18429456809017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18429456809017.

It is not an unprimeable number, because it can be changed into a prime (18429456809417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42386598 + ... + 42819184.

It is an arithmetic number, because the mean of its divisors is an integer number (2309630590800).

Almost surely, 2^{18429456809017} is an apocalyptic number.

It is an amenable number.

18429456809017 is a deficient number, since it is larger than the sum of its proper divisors (47587917383).

18429456809017 is a wasteful number, since it uses less digits than its factorization.

18429456809017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542495.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 18429456809017 in words is "eighteen trillion, four hundred twenty-nine billion, four hundred fifty-six million, eight hundred nine thousand, seventeen".