131889686444 has 36 divisors (see below), whose sum is σ = 234105526200. Its totient is φ = 65014158720.

The previous prime is 131889686413. The next prime is 131889686449. The reversal of 131889686444 is 444686988131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131889686449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9656132 + ... + 9669780.

Almost surely, 2^131889686444 is an apocalyptic number.

It is an amenable number.

131889686444 is a deficient number, since it is larger than the sum of its proper divisors (102215839756).

131889686444 is a wasteful number, since it uses less digits than its factorization.

131889686444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14078 (or 13969 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 62.

The spelling of 131889686444 in words is "one hundred thirty-one billion, eight hundred eighty-nine million, six hundred eighty-six thousand, four hundred forty-four".