18198670833 has 24 divisors (see below), whose sum is σ = 31809443328. Its totient is φ = 9787519872.

The previous prime is 18198670769. The next prime is 18198670843. The reversal of 18198670833 is 33807689181.

It is not a de Polignac number, because 18198670833 - 2⁶ = 18198670769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18198670833.

It is not an unprimeable number, because it can be changed into a prime (18198670843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8495041 + ... + 8497182.

It is an arithmetic number, because the mean of its divisors is an integer number (1325393472).

Almost surely, 2^18198670833 is an apocalyptic number.

It is an amenable number.

18198670833 is a deficient number, since it is larger than the sum of its proper divisors (13610772495).

18198670833 is a wasteful number, since it uses less digits than its factorization.

18198670833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16992253 (or 16992250 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 18198670833 in words is "eighteen billion, one hundred ninety-eight million, six hundred seventy thousand, eight hundred thirty-three".