20130218836278 has 16 divisors (see below), whose sum is σ = 40264461020160. Its totient is φ = 6709402387496.

The previous prime is 20130218836223. The next prime is 20130218836291. The reversal of 20130218836278 is 87263881203102.

It is a self number, because there is not a number n which added to its sum of digits gives 20130218836278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167574438 + ... + 167694521.

It is an arithmetic number, because the mean of its divisors is an integer number (2516528813760).

Almost surely, 2^{20130218836278} is an apocalyptic number.

20130218836278 is an abundant number, since it is smaller than the sum of its proper divisors (20134242183882).

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

20130218836278 is a wasteful number, since it uses less digits than its factorization.

20130218836278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335278971.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 20130218836278 in words is "twenty trillion, one hundred thirty billion, two hundred eighteen million, eight hundred thirty-six thousand, two hundred seventy-eight".