38938579199 has 4 divisors (see below), whose sum is σ = 41933854536. Its totient is φ = 35943303864.

The previous prime is 38938579193. The next prime is 38938579201. The reversal of 38938579199 is 99197583983.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-38938579199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38938579193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1497637649 + ... + 1497637674.

It is an arithmetic number, because the mean of its divisors is an integer number (10483463634).

Almost surely, 2^38938579199 is an apocalyptic number.

38938579199 is a deficient number, since it is larger than the sum of its proper divisors (2995275337).

38938579199 is a wasteful number, since it uses less digits than its factorization.

38938579199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995275336.

The product of its digits is 132269760, while the sum is 71.

The spelling of 38938579199 in words is "thirty-eight billion, nine hundred thirty-eight million, five hundred seventy-nine thousand, one hundred ninety-nine".