17648928620143 has 4 divisors (see below), whose sum is σ = 17666013740848. Its totient is φ = 17631843499440.

The previous prime is 17648928620137. The next prime is 17648928620221. The reversal of 17648928620143 is 34102682984671.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17648928620143 is a prime.

It is a super-2 number, since 2×17648928620143² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17648928621143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8542558803 + ... + 8542560868.

It is an arithmetic number, because the mean of its divisors is an integer number (4416503435212).

Almost surely, 2^{17648928620143} is an apocalyptic number.

17648928620143 is a deficient number, since it is larger than the sum of its proper divisors (17085120705).

17648928620143 is a wasteful number, since it uses less digits than its factorization.

17648928620143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17085120704.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 17648928620143 in words is "seventeen trillion, six hundred forty-eight billion, nine hundred twenty-eight million, six hundred twenty thousand, one hundred forty-three".