18943598101 has 12 divisors (see below), whose sum is σ = 20057510304. Its totient is φ = 17888754600.

The previous prime is 18943598081. The next prime is 18943598137. The reversal of 18943598101 is 10189534981.

It is not a de Polignac number, because 18943598101 - 2⁷ = 18943597973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18943598161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27906 + ... + 196636.

It is an arithmetic number, because the mean of its divisors is an integer number (1671459192).

Almost surely, 2^18943598101 is an apocalyptic number.

It is an amenable number.

18943598101 is a deficient number, since it is larger than the sum of its proper divisors (1113912203).

18943598101 is a wasteful number, since it uses less digits than its factorization.

18943598101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169080 (or 169061 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 18943598101 in words is "eighteen billion, nine hundred forty-three million, five hundred ninety-eight thousand, one hundred one".