38138828365 has 16 divisors (see below), whose sum is σ = 51276579840. Its totient is φ = 26987670720.

The previous prime is 38138828353. The next prime is 38138828369. The reversal of 38138828365 is 56382883183.

It is not a de Polignac number, because 38138828365 - 2⁵ = 38138828333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38138828369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9368685 + ... + 9372754.

It is an arithmetic number, because the mean of its divisors is an integer number (3204786240).

Almost surely, 2^38138828365 is an apocalyptic number.

It is an amenable number.

38138828365 is a deficient number, since it is larger than the sum of its proper divisors (13137751475).

38138828365 is a wasteful number, since it uses less digits than its factorization.

38138828365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18741492.

The product of its digits is 6635520, while the sum is 55.

The spelling of 38138828365 in words is "thirty-eight billion, one hundred thirty-eight million, eight hundred twenty-eight thousand, three hundred sixty-five".