137688659208 has 48 divisors (see below), whose sum is σ = 373596182700. Its totient is φ = 45811370880.

The previous prime is 137688659191. The next prime is 137688659219. The reversal of 137688659208 is 802956886731.

137688659208 is a `hidden beast` number, since 1 + 37 + 6 + 8 + 8 + 6 + 592 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 135440192484 + 2248466724 = 368022^2 + 47418^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1728463 + ... + 1806366.

Almost surely, 2^137688659208 is an apocalyptic number.

137688659208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137688659208 is an abundant number, since it is smaller than the sum of its proper divisors (235907523492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137688659208 is a wasteful number, since it uses less digits than its factorization.

137688659208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535382 (or 3535375 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 137688659208 in words is "one hundred thirty-seven billion, six hundred eighty-eight million, six hundred fifty-nine thousand, two hundred eight".