38121385375 has 8 divisors (see below), whose sum is σ = 47575489104. Its totient is φ = 30497108200.

The previous prime is 38121385373. The next prime is 38121385439. The reversal of 38121385375 is 57358312183.

38121385375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38121385375 - 2¹ = 38121385373 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 (38121385373) 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, 152485417 + ... + 152485666.

It is an arithmetic number, because the mean of its divisors is an integer number (5946936138).

Almost surely, 2^38121385375 is an apocalyptic number.

38121385375 is a deficient number, since it is larger than the sum of its proper divisors (9454103729).

38121385375 is an equidigital number, since it uses as much as digits as its factorization.

38121385375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304971098 (or 304971088 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The spelling of 38121385375 in words is "thirty-eight billion, one hundred twenty-one million, three hundred eighty-five thousand, three hundred seventy-five".