18793668101 has 8 divisors (see below), whose sum is σ = 20250008184. Its totient is φ = 17338852800.

The previous prime is 18793668077. The next prime is 18793668137. The reversal of 18793668101 is 10186639781.

It is a Cunningham number, because it is equal to 137090²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 18793668100 = 1^2 + 137090^2 .

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 18793668101 - 2¹⁰ = 18793667077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18793668101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18793068101) 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, 355526 + ... + 404951.

It is an arithmetic number, because the mean of its divisors is an integer number (2531251023).

Almost surely, 2^18793668101 is an apocalyptic number.

It is an amenable number.

18793668101 is a deficient number, since it is larger than the sum of its proper divisors (1456340083).

18793668101 is a wasteful number, since it uses less digits than its factorization.

18793668101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762391.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 18793668101 in words is "eighteen billion, seven hundred ninety-three million, six hundred sixty-eight thousand, one hundred one".