1887242380205 has 32 divisors (see below), whose sum is σ = 2798157567744. Its totient is φ = 1189914034176.

The previous prime is 1887242380201. The next prime is 1887242380211. The reversal of 1887242380205 is 5020832427881.

It is not a de Polignac number, because 1887242380205 - 2² = 1887242380201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887242380201) 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 31 ways as a sum of consecutive naturals, for example, 7952687 + ... + 8186556.

It is an arithmetic number, because the mean of its divisors is an integer number (87442423992).

Almost surely, 2^{1887242380205} is an apocalyptic number.

It is an amenable number.

1887242380205 is a deficient number, since it is larger than the sum of its proper divisors (910915187539).

1887242380205 is a wasteful number, since it uses less digits than its factorization.

1887242380205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16139525.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 1887242380205 in words is "one trillion, eight hundred eighty-seven billion, two hundred forty-two million, three hundred eighty thousand, two hundred five".