136988999189 has 24 divisors (see below), whose sum is σ = 166334813568. Its totient is φ = 112278972960.

The previous prime is 136988999183. The next prime is 136988999201. The reversal of 136988999189 is 981999889631.

It is a happy number.

It is not a de Polignac number, because 136988999189 - 2¹² = 136988995093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136988999183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3973544 + ... + 4007870.

It is an arithmetic number, because the mean of its divisors is an integer number (6930617232).

Almost surely, 2^136988999189 is an apocalyptic number.

It is an amenable number.

136988999189 is a deficient number, since it is larger than the sum of its proper divisors (29345814379).

136988999189 is a wasteful number, since it uses less digits than its factorization.

136988999189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37905 (or 37898 counting only the distinct ones).

The product of its digits is 544195584, while the sum is 80.

The spelling of 136988999189 in words is "one hundred thirty-six billion, nine hundred eighty-eight million, nine hundred ninety-nine thousand, one hundred eighty-nine".