18762086806 has 4 divisors (see below), whose sum is σ = 28143130212. Its totient is φ = 9381043402.

The previous prime is 18762086803. The next prime is 18762086813. The reversal of 18762086806 is 60868026781.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18762086803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4690521700 + ... + 4690521703.

It is an arithmetic number, because the mean of its divisors is an integer number (7035782553).

Almost surely, 2^18762086806 is an apocalyptic number.

18762086806 is a deficient number, since it is larger than the sum of its proper divisors (9381043406).

18762086806 is an equidigital number, since it uses as much as digits as its factorization.

18762086806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381043405.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 18762086806 in words is "eighteen billion, seven hundred sixty-two million, eighty-six thousand, eight hundred six".