17428745746 has 8 divisors (see below), whose sum is σ = 27680949180. Its totient is φ = 8201762688.

The previous prime is 17428745687. The next prime is 17428745759. The reversal of 17428745746 is 64754782471.

It can be written as a sum of positive squares in 2 ways, for example, as 13097658025 + 4331087721 = 114445^2 + 65811^2 .

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

It is a super-2 number, since 2×17428745746² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256305051 + ... + 256305118.

Almost surely, 2^17428745746 is an apocalyptic number.

17428745746 is a deficient number, since it is larger than the sum of its proper divisors (10252203434).

17428745746 is a wasteful number, since it uses less digits than its factorization.

17428745746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512610188.

The product of its digits is 10536960, while the sum is 55.

The spelling of 17428745746 in words is "seventeen billion, four hundred twenty-eight million, seven hundred forty-five thousand, seven hundred forty-six".