17042402643 has 16 divisors (see below), whose sum is σ = 26020412160. Its totient is φ = 9719377056.

The previous prime is 17042402627. The next prime is 17042402693. The reversal of 17042402643 is 34620424071.

It is not a de Polignac number, because 17042402643 - 2⁴ = 17042402627 is a prime.

It is a super-2 number, since 2×17042402643² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17042402623) 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 15 ways as a sum of consecutive naturals, for example, 786505 + ... + 807882.

It is an arithmetic number, because the mean of its divisors is an integer number (1626275760).

Almost surely, 2^17042402643 is an apocalyptic number.

17042402643 is a deficient number, since it is larger than the sum of its proper divisors (8978009517).

17042402643 is a wasteful number, since it uses less digits than its factorization.

17042402643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594906.

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 17042402643 in words is "seventeen billion, forty-two million, four hundred two thousand, six hundred forty-three".