138787526218 has 8 divisors (see below), whose sum is σ = 227106861120. Its totient is φ = 63085239180.

The previous prime is 138787526201. The next prime is 138787526231. The reversal of 138787526218 is 812625787831.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3154261938 + ... + 3154261981.

It is an arithmetic number, because the mean of its divisors is an integer number (28388357640).

Almost surely, 2^138787526218 is an apocalyptic number.

138787526218 is a deficient number, since it is larger than the sum of its proper divisors (88319334902).

138787526218 is a wasteful number, since it uses less digits than its factorization.

138787526218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308523932.

The product of its digits is 9031680, while the sum is 58.

The spelling of 138787526218 in words is "one hundred thirty-eight billion, seven hundred eighty-seven million, five hundred twenty-six thousand, two hundred eighteen".