1538418416338 has 8 divisors (see below), whose sum is σ = 2307640521420. Its totient is φ = 769204909200.

The previous prime is 1538418416243. The next prime is 1538418416351. The reversal of 1538418416338 is 8336148148351.

It can be written as a sum of positive squares in 2 ways, for example, as 1407205670049 + 131212746289 = 1186257^2 + 362233^2 .

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

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, 1681813 + ... + 2430088.

Almost surely, 2^{1538418416338} is an apocalyptic number.

1538418416338 is a deficient number, since it is larger than the sum of its proper divisors (769222105082).

1538418416338 is a wasteful number, since it uses less digits than its factorization.

1538418416338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298972.

The product of its digits is 6635520, while the sum is 55.

The spelling of 1538418416338 in words is "one trillion, five hundred thirty-eight billion, four hundred eighteen million, four hundred sixteen thousand, three hundred thirty-eight".