18481887138462 has 32 divisors (see below), whose sum is σ = 40324674628224. Its totient is φ = 5600494466400.

The previous prime is 18481887138371. The next prime is 18481887138527. The reversal of 18481887138462 is 26483178818481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2970928 + ... + 6766844.

It is an arithmetic number, because the mean of its divisors is an integer number (1260146082132).

Almost surely, 2^{18481887138462} is an apocalyptic number.

18481887138462 is an abundant number, since it is smaller than the sum of its proper divisors (21842787489762).

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

18481887138462 is a wasteful number, since it uses less digits than its factorization.

18481887138462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869704.

The product of its digits is 132120576, while the sum is 69.

The spelling of 18481887138462 in words is "eighteen trillion, four hundred eighty-one billion, eight hundred eighty-seven million, one hundred thirty-eight thousand, four hundred sixty-two".