104171365918 has 4 divisors (see below), whose sum is σ = 156257048880. Its totient is φ = 52085682958.

The previous prime is 104171365891. The next prime is 104171365937. The reversal of 104171365918 is 819563171401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 819563171401 = 13 ⋅63043320877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26042841478 + ... + 26042841481.

It is an arithmetic number, because the mean of its divisors is an integer number (39064262220).

Almost surely, 2^104171365918 is an apocalyptic number.

104171365918 is a deficient number, since it is larger than the sum of its proper divisors (52085682962).

104171365918 is an equidigital number, since it uses as much as digits as its factorization.

104171365918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52085682961.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 104171365918 in words is "one hundred four billion, one hundred seventy-one million, three hundred sixty-five thousand, nine hundred eighteen".