38731563371 has 4 divisors (see below), whose sum is σ = 38947941000. Its totient is φ = 38515185744.

The previous prime is 38731563323. The next prime is 38731563413. The reversal of 38731563371 is 17336513783.

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

It is a cyclic number.

It is not a de Polignac number, because 38731563371 - 2¹⁸ = 38731301227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38731565371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108188546 + ... + 108188903.

It is an arithmetic number, because the mean of its divisors is an integer number (9736985250).

Almost surely, 2^38731563371 is an apocalyptic number.

38731563371 is a deficient number, since it is larger than the sum of its proper divisors (216377629).

38731563371 is a wasteful number, since it uses less digits than its factorization.

38731563371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216377628.

The product of its digits is 952560, while the sum is 47.

The spelling of 38731563371 in words is "thirty-eight billion, seven hundred thirty-one million, five hundred sixty-three thousand, three hundred seventy-one".