137988841689 has 6 divisors (see below), whose sum is σ = 199317215786. Its totient is φ = 91992561120.

The previous prime is 137988841673. The next prime is 137988841759. The reversal of 137988841689 is 986148889731.

It can be written as a sum of positive squares in only one way, i.e., 87384089664 + 50604752025 = 295608^2 + 224955^2 .

It is not a de Polignac number, because 137988841689 - 2⁴ = 137988841673 is a prime.

It is a super-3 number, since 3×137988841689³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137988841189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7666046752 + ... + 7666046769.

Almost surely, 2^137988841689 is an apocalyptic number.

It is an amenable number.

137988841689 is a deficient number, since it is larger than the sum of its proper divisors (61328374097).

137988841689 is a wasteful number, since it uses less digits than its factorization.

137988841689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15332093527 (or 15332093524 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 72.

The spelling of 137988841689 in words is "one hundred thirty-seven billion, nine hundred eighty-eight million, eight hundred forty-one thousand, six hundred eighty-nine".