38538503387 has 4 divisors (see below), whose sum is σ = 38544376680. Its totient is φ = 38532630096.

The previous prime is 38538503383. The next prime is 38538503431. The reversal of 38538503387 is 78330583583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78330583583 = 7 ⋅11190083369.

It is a cyclic number.

It is not a de Polignac number, because 38538503387 - 2² = 38538503383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38538503383) 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, 2926793 + ... + 2939930.

It is an arithmetic number, because the mean of its divisors is an integer number (9636094170).

Almost surely, 2^38538503387 is an apocalyptic number.

38538503387 is a deficient number, since it is larger than the sum of its proper divisors (5873293).

38538503387 is an equidigital number, since it uses as much as digits as its factorization.

38538503387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873292.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 38538503387 in words is "thirty-eight billion, five hundred thirty-eight million, five hundred three thousand, three hundred eighty-seven".