18357116943 has 8 divisors (see below), whose sum is σ = 26701261056. Its totient is φ = 11125525400.

The previous prime is 18357116929. The next prime is 18357116977. The reversal of 18357116943 is 34961175381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18357116943 - 2³⁰ = 17283375119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18357116892 and 18357116901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18357118943) 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, 278138103 + ... + 278138168.

It is an arithmetic number, because the mean of its divisors is an integer number (3337657632).

Almost surely, 2^18357116943 is an apocalyptic number.

18357116943 is a deficient number, since it is larger than the sum of its proper divisors (8344144113).

18357116943 is a wasteful number, since it uses less digits than its factorization.

18357116943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556276285.

The product of its digits is 544320, while the sum is 48.

The spelling of 18357116943 in words is "eighteen billion, three hundred fifty-seven million, one hundred sixteen thousand, nine hundred forty-three".