137638875138 has 16 divisors (see below), whose sum is σ = 276459202656. Its totient is φ = 45682716320.

The previous prime is 137638875133. The next prime is 137638875221. The reversal of 137638875138 is 831578836731.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137638875133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49225668 + ... + 49228463.

It is an arithmetic number, because the mean of its divisors is an integer number (17278700166).

Almost surely, 2^137638875138 is an apocalyptic number.

137638875138 is an abundant number, since it is smaller than the sum of its proper divisors (138820327518).

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

137638875138 is a wasteful number, since it uses less digits than its factorization.

137638875138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98454369.

The product of its digits is 20321280, while the sum is 60.

The spelling of 137638875138 in words is "one hundred thirty-seven billion, six hundred thirty-eight million, eight hundred seventy-five thousand, one hundred thirty-eight".