1819100002 has 8 divisors (see below), whose sum is σ = 2730350700. Its totient is φ = 908983104.

The previous prime is 1819099999. The next prime is 1819100021. The reversal of 1819100002 is 2000019181.

It can be written as a sum of positive squares in 2 ways, for example, as 1349901081 + 469198921 = 36741^2 + 21661^2 .

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, 279427 + ... + 285862.

Almost surely, 2^1819100002 is an apocalyptic number.

1819100002 is a deficient number, since it is larger than the sum of its proper divisors (911250698).

1819100002 is a wasteful number, since it uses less digits than its factorization.

1819100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566900.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1819100002 is about 42650.9085717995. The cubic root of 1819100002 is about 1220.7278649540.

Adding to 1819100002 its reverse (2000019181), we get a palindrome (3819119183).

The spelling of 1819100002 in words is "one billion, eight hundred nineteen million, one hundred thousand, two".