1800003900002 has 192 divisors, whose sum is σ = 3526250112000. Its totient is φ = 669264301440.

The previous prime is 1800003899977. The next prime is 1800003900053. The reversal of 1800003900002 is 2000093000081.

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 95 ways as a sum of consecutive naturals, for example, 5157604124 + ... + 5157604472.

It is an arithmetic number, because the mean of its divisors is an integer number (18365886000).

Almost surely, 2^{1800003900002} is an apocalyptic number.

1800003900002 is a deficient number, since it is larger than the sum of its proper divisors (1726246211998).

1800003900002 is a wasteful number, since it uses less digits than its factorization.

1800003900002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1800003900002 its reverse (2000093000081), we get a palindrome (3800096900083).

The spelling of 1800003900002 in words is "one trillion, eight hundred billion, three million, nine hundred thousand, two".