1887669886613 has 12 divisors (see below), whose sum is σ = 2201101630560. Its totient is φ = 1614141160632.

The previous prime is 1887669886579. The next prime is 1887669886637. The reversal of 1887669886613 is 3166889667881.

It is not a de Polignac number, because 1887669886613 - 2¹⁰ = 1887669885589 is a prime.

It is a super-2 number, since 2×1887669886613² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887669886643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45950681 + ... + 45991742.

It is an arithmetic number, because the mean of its divisors is an integer number (183425135880).

Almost surely, 2^{1887669886613} is an apocalyptic number.

It is an amenable number.

1887669886613 is a deficient number, since it is larger than the sum of its proper divisors (313431743947).

1887669886613 is an equidigital number, since it uses as much as digits as its factorization.

1887669886613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91942856 (or 91942849 counting only the distinct ones).

The product of its digits is 1003290624, while the sum is 77.

The spelling of 1887669886613 in words is "one trillion, eight hundred eighty-seven billion, six hundred sixty-nine million, eight hundred eighty-six thousand, six hundred thirteen".