38181383697 has 8 divisors (see below), whose sum is σ = 50962273056. Its totient is φ = 25427375072.

The previous prime is 38181383687. The next prime is 38181383717. The reversal of 38181383697 is 79638318183.

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

It is a cyclic number.

It is not a de Polignac number, because 38181383697 - 2¹⁸ = 38181121553 is a prime.

It is a super-2 number, since 2×38181383697² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38181383677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6716868 + ... + 6722549.

It is an arithmetic number, because the mean of its divisors is an integer number (6370284132).

Almost surely, 2^38181383697 is an apocalyptic number.

It is an amenable number.

38181383697 is a deficient number, since it is larger than the sum of its proper divisors (12780889359).

38181383697 is a wasteful number, since it uses less digits than its factorization.

38181383697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440367.

The product of its digits is 5225472, while the sum is 57.

The spelling of 38181383697 in words is "thirty-eight billion, one hundred eighty-one million, three hundred eighty-three thousand, six hundred ninety-seven".