1885444261713 has 6 divisors (see below), whose sum is σ = 2723419489154. Its totient is φ = 1256962841136.

The previous prime is 1885444261697. The next prime is 1885444261717. The reversal of 1885444261713 is 3171624445881.

It is a happy number.

1885444261713 is a `hidden beast` number, since 1 + 8 + 8 + 5 + 4 + 4 + 4 + 2 + 617 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1795940376129 + 89503885584 = 1340127^2 + 299172^2 .

It is not a de Polignac number, because 1885444261713 - 2⁴ = 1885444261697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1885444261713.

It is not an unprimeable number, because it can be changed into a prime (1885444261717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104746903420 + ... + 104746903437.

Almost surely, 2^{1885444261713} is an apocalyptic number.

It is an amenable number.

1885444261713 is a deficient number, since it is larger than the sum of its proper divisors (837975227441).

1885444261713 is a wasteful number, since it uses less digits than its factorization.

1885444261713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209493806863 (or 209493806860 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 1885444261713 in words is "one trillion, eight hundred eighty-five billion, four hundred forty-four million, two hundred sixty-one thousand, seven hundred thirteen".