1800906887153 has 6 divisors (see below), whose sum is σ = 1979509223202. Its totient is φ = 1637188079120.

The previous prime is 1800906887149. The next prime is 1800906887167. The reversal of 1800906887153 is 3517886090081.

It can be written as a sum of positive squares in only one way, i.e., 1244902525504 + 556004361649 = 1115752^2 + 745657^2 .

It is not a de Polignac number, because 1800906887153 - 2² = 1800906887149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1800906887113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7441763876 + ... + 7441764117.

It is an arithmetic number, because the mean of its divisors is an integer number (329918203867).

Almost surely, 2^{1800906887153} is an apocalyptic number.

It is an amenable number.

1800906887153 is a deficient number, since it is larger than the sum of its proper divisors (178602336049).

1800906887153 is a wasteful number, since it uses less digits than its factorization.

1800906887153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14883528015 (or 14883528004 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 1800906887153 in words is "one trillion, eight hundred billion, nine hundred six million, eight hundred eighty-seven thousand, one hundred fifty-three".