17948158163 has 4 divisors (see below), whose sum is σ = 19328785728. Its totient is φ = 16567530600.

The previous prime is 17948158147. The next prime is 17948158181. The reversal of 17948158163 is 36185184971.

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

It is a cyclic number.

It is not a de Polignac number, because 17948158163 - 2⁴ = 17948158147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17948158463) 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 3 ways as a sum of consecutive naturals, for example, 690313763 + ... + 690313788.

It is an arithmetic number, because the mean of its divisors is an integer number (4832196432).

Almost surely, 2^17948158163 is an apocalyptic number.

17948158163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

17948158163 is a deficient number, since it is larger than the sum of its proper divisors (1380627565).

17948158163 is a wasteful number, since it uses less digits than its factorization.

17948158163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380627564.

The product of its digits is 1451520, while the sum is 53.

The spelling of 17948158163 in words is "seventeen billion, nine hundred forty-eight million, one hundred fifty-eight thousand, one hundred sixty-three".