138468178586 has 8 divisors (see below), whose sum is σ = 207711279840. Its totient is φ = 69231085308.

The previous prime is 138468178571. The next prime is 138468178603. The reversal of 138468178586 is 685871864831.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443926 + ... + 1536833.

It is an arithmetic number, because the mean of its divisors is an integer number (25963909980).

Almost surely, 2^138468178586 is an apocalyptic number.

138468178586 is a deficient number, since it is larger than the sum of its proper divisors (69243101254).

138468178586 is a wasteful number, since it uses less digits than its factorization.

138468178586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003988.

The product of its digits is 61931520, while the sum is 65.

The spelling of 138468178586 in words is "one hundred thirty-eight billion, four hundred sixty-eight million, one hundred seventy-eight thousand, five hundred eighty-six".