1800000000002 has 8 divisors (see below), whose sum is σ = 2700006157200. Its totient is φ = 899997947604.

The previous prime is 1799999999977. The next prime is 1800000000047. The reversal of 1800000000002 is 2000000000081.

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, 561149 + ... + 1978607.

It is an arithmetic number, because the mean of its divisors is an integer number (337500769650).

Almost surely, 2^{1800000000002} is an apocalyptic number.

1800000000002 is a deficient number, since it is larger than the sum of its proper divisors (900006157198).

1800000000002 is a wasteful number, since it uses less digits than its factorization.

1800000000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052400.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1800000000002 its reverse (2000000000081), we get a palindrome (3800000000083).

It can be divided in two parts, 180000000000 and 2, that multiplied together give a square (360000000000 = 600000²).

The spelling of 1800000000002 in words is "one trillion, eight hundred billion, two", and thus it is an aban number.