18147250486 has 4 divisors (see below), whose sum is σ = 27220875732. Its totient is φ = 9073625242.

The previous prime is 18147250463. The next prime is 18147250567. The reversal of 18147250486 is 68405274181.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4536812620 + ... + 4536812623.

It is an arithmetic number, because the mean of its divisors is an integer number (6805218933).

Almost surely, 2^18147250486 is an apocalyptic number.

18147250486 is a deficient number, since it is larger than the sum of its proper divisors (9073625246).

18147250486 is an equidigital number, since it uses as much as digits as its factorization.

18147250486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9073625245.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 18147250486 in words is "eighteen billion, one hundred forty-seven million, two hundred fifty thousand, four hundred eighty-six".