38851316789 has 4 divisors (see below), whose sum is σ = 39584360556. Its totient is φ = 38118273024.

The previous prime is 38851316743. The next prime is 38851316807. The reversal of 38851316789 is 98761315883.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27542057764 + 11309259025 = 165958^2 + 106345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38851316789 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 (38851316729) 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, 366521804 + ... + 366521909.

It is an arithmetic number, because the mean of its divisors is an integer number (9896090139).

Almost surely, 2^38851316789 is an apocalyptic number.

It is an amenable number.

38851316789 is a deficient number, since it is larger than the sum of its proper divisors (733043767).

38851316789 is an equidigital number, since it uses as much as digits as its factorization.

38851316789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733043766.

The product of its digits is 8709120, while the sum is 59.

The spelling of 38851316789 in words is "thirty-eight billion, eight hundred fifty-one million, three hundred sixteen thousand, seven hundred eighty-nine".