38127211665 has 16 divisors (see below), whose sum is σ = 63655867008. Its totient is φ = 19450403456.

The previous prime is 38127211649. The next prime is 38127211679. The reversal of 38127211665 is 56611272183.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 38127211665 - 2⁴ = 38127211649 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 55256484 + ... + 55257173.

It is an arithmetic number, because the mean of its divisors is an integer number (3978491688).

Almost surely, 2^38127211665 is an apocalyptic number.

It is an amenable number.

38127211665 is a deficient number, since it is larger than the sum of its proper divisors (25528655343).

38127211665 is a wasteful number, since it uses less digits than its factorization.

38127211665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110513688.

The product of its digits is 120960, while the sum is 42.

The spelling of 38127211665 in words is "thirty-eight billion, one hundred twenty-seven million, two hundred eleven thousand, six hundred sixty-five".