1888632438913 has 12 divisors (see below), whose sum is σ = 2096089550464. Its totient is φ = 1700269263000.

The previous prime is 1888632438863. The next prime is 1888632438949. The reversal of 1888632438913 is 3198342368881.

It is not a de Polignac number, because 1888632438913 - 2⁹ = 1888632438401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1888632438613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75757113 + ... + 75782038.

Almost surely, 2^{1888632438913} is an apocalyptic number.

It is an amenable number.

1888632438913 is a deficient number, since it is larger than the sum of its proper divisors (207457111551).

1888632438913 is a wasteful number, since it uses less digits than its factorization.

1888632438913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151539276 (or 151539265 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 64.

The spelling of 1888632438913 in words is "one trillion, eight hundred eighty-eight billion, six hundred thirty-two million, four hundred thirty-eight thousand, nine hundred thirteen".