1988489188223 has 4 divisors (see below), whose sum is σ = 1988521209960. Its totient is φ = 1988457166488.

The previous prime is 1988489188171. The next prime is 1988489188291. The reversal of 1988489188223 is 3228819848891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1988489188223 - 2¹⁴ = 1988489171839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988489185223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15917540 + ... + 16041977.

It is an arithmetic number, because the mean of its divisors is an integer number (497130302490).

Almost surely, 2^{1988489188223} is an apocalyptic number.

1988489188223 is a deficient number, since it is larger than the sum of its proper divisors (32021737).

1988489188223 is an equidigital number, since it uses as much as digits as its factorization.

1988489188223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32021736.

The product of its digits is 127401984, while the sum is 71.

It can be divided in two parts, 1988489 and 188223, that added together give a palindrome (2176712).

The spelling of 1988489188223 in words is "one trillion, nine hundred eighty-eight billion, four hundred eighty-nine million, one hundred eighty-eight thousand, two hundred twenty-three".