188901231489 has 24 divisors (see below), whose sum is σ = 285559193920. Its totient is φ = 124778777616.

The previous prime is 188901231473. The next prime is 188901231521. The reversal of 188901231489 is 984132109881.

It is a happy number.

188901231489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 188901231489 - 2⁴ = 188901231473 is a prime.

It is a super-3 number, since 3×188901231489³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188901221489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3539437 + ... + 3592410.

Almost surely, 2^188901231489 is an apocalyptic number.

It is an amenable number.

188901231489 is a deficient number, since it is larger than the sum of its proper divisors (96657962431).

188901231489 is an equidigital number, since it uses as much as digits as its factorization.

188901231489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131971 (or 7131959 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 188901231489 in words is "one hundred eighty-eight billion, nine hundred one million, two hundred thirty-one thousand, four hundred eighty-nine".