17042051638 has 8 divisors (see below), whose sum is σ = 25826614632. Its totient is φ = 8433180096.

The previous prime is 17042051629. The next prime is 17042051701. The reversal of 17042051638 is 83615024071.

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

It is a junction number, because it is equal to n+sod(n) for n = 17042051597 and 17042051606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43922620 + ... + 43923007.

It is an arithmetic number, because the mean of its divisors is an integer number (3228326829).

Almost surely, 2^17042051638 is an apocalyptic number.

17042051638 is a deficient number, since it is larger than the sum of its proper divisors (8784562994).

17042051638 is an equidigital number, since it uses as much as digits as its factorization.

17042051638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87845726.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 17042051638 in words is "seventeen billion, forty-two million, fifty-one thousand, six hundred thirty-eight".