19381822002 has 24 divisors (see below), whose sum is σ = 42128125884. Its totient is φ = 6439964544.

The previous prime is 19381821989. The next prime is 19381822063. The reversal of 19381822002 is 20022818391.

It can be written as a sum of positive squares in 2 ways, for example, as 15722902881 + 3658919121 = 125391^2 + 60489^2 .

It is a super-2 number, since 2×19381822002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1714443 + ... + 1725710.

Almost surely, 2^19381822002 is an apocalyptic number.

19381822002 is an abundant number, since it is smaller than the sum of its proper divisors (22746303882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19381822002 is a wasteful number, since it uses less digits than its factorization.

19381822002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440474 (or 3440471 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 19381822002 in words is "nineteen billion, three hundred eighty-one million, eight hundred twenty-two thousand, two".