38118413681 has 8 divisors (see below), whose sum is σ = 40139766720. Its totient is φ = 36098572752.

The previous prime is 38118413579. The next prime is 38118413743. The reversal of 38118413681 is 18631481183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38118413681 is a prime.

It is a super-2 number, since 2×38118413681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38118412681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326090 + ... + 427283.

It is an arithmetic number, because the mean of its divisors is an integer number (5017470840).

Almost surely, 2^38118413681 is an apocalyptic number.

It is an amenable number.

38118413681 is a deficient number, since it is larger than the sum of its proper divisors (2021353039).

38118413681 is a wasteful number, since it uses less digits than its factorization.

38118413681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756055.

The product of its digits is 110592, while the sum is 44.

The spelling of 38118413681 in words is "thirty-eight billion, one hundred eighteen million, four hundred thirteen thousand, six hundred eighty-one".