18022247746 has 8 divisors (see below), whose sum is σ = 27173441484. Its totient is φ = 8964433920.

The previous prime is 18022247729. The next prime is 18022247777. The reversal of 18022247746 is 64774222081.

It can be written as a sum of positive squares in 2 ways, for example, as 17705229721 + 317018025 = 133061^2 + 17805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23344495 + ... + 23345266.

Almost surely, 2^18022247746 is an apocalyptic number.

18022247746 is a deficient number, since it is larger than the sum of its proper divisors (9151193738).

18022247746 is a wasteful number, since it uses less digits than its factorization.

18022247746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46689956.

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 18022247746 in words is "eighteen billion, twenty-two million, two hundred forty-seven thousand, seven hundred forty-six".