18200194768 has 40 divisors (see below), whose sum is σ = 42052629888. Its totient is φ = 7460948352.

The previous prime is 18200194759. The next prime is 18200194783. The reversal of 18200194768 is 86749100281.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3530071 + ... + 3535222.

Almost surely, 2^18200194768 is an apocalyptic number.

It is an amenable number.

18200194768 is an abundant number, since it is smaller than the sum of its proper divisors (23852435120).

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

18200194768 is a wasteful number, since it uses less digits than its factorization.

18200194768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065331 (or 7065325 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 18200194768 in words is "eighteen billion, two hundred million, one hundred ninety-four thousand, seven hundred sixty-eight".