18856022386 has 8 divisors (see below), whose sum is σ = 28321697664. Its totient is φ = 9415456500.

The previous prime is 18856022369. The next prime is 18856022387. The reversal of 18856022386 is 68322065881.

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

It is not an unprimeable number, because it can be changed into a prime (18856022387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6275470 + ... + 6278473.

It is an arithmetic number, because the mean of its divisors is an integer number (3540212208).

Almost surely, 2^18856022386 is an apocalyptic number.

18856022386 is a deficient number, since it is larger than the sum of its proper divisors (9465675278).

18856022386 is a wasteful number, since it uses less digits than its factorization.

18856022386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12554696.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 18856022386 in words is "eighteen billion, eight hundred fifty-six million, twenty-two thousand, three hundred eighty-six".