18649969922 has 8 divisors (see below), whose sum is σ = 27987456000. Its totient is φ = 9320817924.

The previous prime is 18649969903. The next prime is 18649969981. The reversal of 18649969922 is 22996994681.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2077922 + ... + 2086877.

It is an arithmetic number, because the mean of its divisors is an integer number (3498432000).

Almost surely, 2^18649969922 is an apocalyptic number.

18649969922 is a deficient number, since it is larger than the sum of its proper divisors (9337486078).

18649969922 is a wasteful number, since it uses less digits than its factorization.

18649969922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167040.

The product of its digits is 30233088, while the sum is 65.

The spelling of 18649969922 in words is "eighteen billion, six hundred forty-nine million, nine hundred sixty-nine thousand, nine hundred twenty-two".