18693140200 has 48 divisors (see below), whose sum is σ = 49670347680. Its totient is φ = 6409076160.

The previous prime is 18693140173. The next prime is 18693140201. The reversal of 18693140200 is 204139681.

It is not an unprimeable number, because it can be changed into a prime (18693140201) 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 11 ways as a sum of consecutive naturals, for example, 6674722 + ... + 6677521.

It is an arithmetic number, because the mean of its divisors is an integer number (1034798910).

Almost surely, 2^18693140200 is an apocalyptic number.

18693140200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18693140200 is an abundant number, since it is smaller than the sum of its proper divisors (30977207480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18693140200 is a wasteful number, since it uses less digits than its factorization.

18693140200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352266 (or 13352257 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

Adding to 18693140200 its reverse (204139681), we get a palindrome (18897279881).

The spelling of 18693140200 in words is "eighteen billion, six hundred ninety-three million, one hundred forty thousand, two hundred".