19224864986 has 8 divisors (see below), whose sum is σ = 29540646324. Its totient is φ = 9377982880.

The previous prime is 19224864983. The next prime is 19224865003. The reversal of 19224864986 is 68946842291.

It can be written as a sum of positive squares in 2 ways, for example, as 18829053961 + 395811025 = 137219^2 + 19895^2 .

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 (19224864983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117224705 + ... + 117224868.

Almost surely, 2^19224864986 is an apocalyptic number.

19224864986 is a deficient number, since it is larger than the sum of its proper divisors (10315781338).

19224864986 is a wasteful number, since it uses less digits than its factorization.

19224864986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234449616.

The product of its digits is 11943936, while the sum is 59.

The spelling of 19224864986 in words is "nineteen billion, two hundred twenty-four million, eight hundred sixty-four thousand, nine hundred eighty-six".