2187481838676 has 12 divisors (see below), whose sum is σ = 5104124290272. Its totient is φ = 729160612888.

The previous prime is 2187481838669. The next prime is 2187481838687. The reversal of 2187481838676 is 6768381847812.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2187481838676.

It is a congruent number.

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, 91145076600 + ... + 91145076623.

It is an arithmetic number, because the mean of its divisors is an integer number (425343690856).

Almost surely, 2^{2187481838676} is an apocalyptic number.

It is an amenable number.

2187481838676 is an abundant number, since it is smaller than the sum of its proper divisors (2916642451596).

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

2187481838676 is a wasteful number, since it uses less digits than its factorization.

2187481838676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182290153230 (or 182290153228 counting only the distinct ones).

The product of its digits is 173408256, while the sum is 69.

The spelling of 2187481838676 in words is "two trillion, one hundred eighty-seven billion, four hundred eighty-one million, eight hundred thirty-eight thousand, six hundred seventy-six".