17056891493 has 8 divisors (see below), whose sum is σ = 17179638336. Its totient is φ = 16934580000.

The previous prime is 17056891483. The next prime is 17056891547. The reversal of 17056891493 is 39419865071.

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 17056891493 - 2¹⁰ = 17056890469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17056891433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29993 + ... + 187118.

It is an arithmetic number, because the mean of its divisors is an integer number (2147454792).

Almost surely, 2^17056891493 is an apocalyptic number.

It is an amenable number.

17056891493 is a deficient number, since it is larger than the sum of its proper divisors (122746843).

17056891493 is a wasteful number, since it uses less digits than its factorization.

17056891493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217675.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 17056891493 in words is "seventeen billion, fifty-six million, eight hundred ninety-one thousand, four hundred ninety-three".