18817345101 has 16 divisors (see below), whose sum is σ = 27481723200. Its totient is φ = 11399824128.

The previous prime is 18817345081. The next prime is 18817345103. The reversal of 18817345101 is 10154371881.

It is not a de Polignac number, because 18817345101 - 2⁵ = 18817345069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18817345101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18817345103) 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 15 ways as a sum of consecutive naturals, for example, 6360031 + ... + 6362988.

It is an arithmetic number, because the mean of its divisors is an integer number (1717607700).

Almost surely, 2^18817345101 is an apocalyptic number.

It is an amenable number.

18817345101 is a deficient number, since it is larger than the sum of its proper divisors (8664378099).

18817345101 is a wasteful number, since it uses less digits than its factorization.

18817345101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12723068.

The product of its (nonzero) digits is 26880, while the sum is 39.

The spelling of 18817345101 in words is "eighteen billion, eight hundred seventeen million, three hundred forty-five thousand, one hundred one".