137638888884 has 108 divisors (see below), whose sum is σ = 405011085024. Its totient is φ = 39297490848.

The previous prime is 137638888823. The next prime is 137638888889. The reversal of 137638888884 is 488888836731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137638888889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2525547 + ... + 2579469.

Almost surely, 2^137638888884 is an apocalyptic number.

137638888884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137638888884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202505542512).

137638888884 is an abundant number, since it is smaller than the sum of its proper divisors (267372196140).

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

137638888884 is a wasteful number, since it uses less digits than its factorization.

137638888884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55394 (or 55382 counting only the distinct ones).

The product of its digits is 396361728, while the sum is 72.

The spelling of 137638888884 in words is "one hundred thirty-seven billion, six hundred thirty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-four".