17079491521 has 8 divisors (see below), whose sum is σ = 17405516520. Its totient is φ = 16753606272.

The previous prime is 17079491519. The next prime is 17079491537. The reversal of 17079491521 is 12519497071.

17079491521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3839537296 + 13239954225 = 61964^2 + 115065^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 17079491521 - 2¹ = 17079491519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17079491921) 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 7 ways as a sum of consecutive naturals, for example, 230931 + ... + 295783.

It is an arithmetic number, because the mean of its divisors is an integer number (2175689565).

Almost surely, 2^17079491521 is an apocalyptic number.

It is an amenable number.

17079491521 is a deficient number, since it is larger than the sum of its proper divisors (326024999).

17079491521 is an equidigital number, since it uses as much as digits as its factorization.

17079491521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69875.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 17079491521 in words is "seventeen billion, seventy-nine million, four hundred ninety-one thousand, five hundred twenty-one".