18038202277886 has 8 divisors (see below), whose sum is σ = 30922632476400. Its totient is φ = 7730658119088.

The previous prime is 18038202277873. The next prime is 18038202277891. The reversal of 18038202277886 is 68877220283081.

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

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, 644221509911 + ... + 644221509938.

It is an arithmetic number, because the mean of its divisors is an integer number (3865329059550).

Almost surely, 2^{18038202277886} is an apocalyptic number.

18038202277886 is a deficient number, since it is larger than the sum of its proper divisors (12884430198514).

18038202277886 is a wasteful number, since it uses less digits than its factorization.

18038202277886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288443019858.

The product of its (nonzero) digits is 28901376, while the sum is 62.

The spelling of 18038202277886 in words is "eighteen trillion, thirty-eight billion, two hundred two million, two hundred seventy-seven thousand, eight hundred eighty-six".