38784316565 has 8 divisors (see below), whose sum is σ = 46705638048. Its totient is φ = 30917814480.

The previous prime is 38784316547. The next prime is 38784316567. The reversal of 38784316565 is 56561348783.

38784316565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-38784316565 is a prime.

It is a super-2 number, since 2×38784316565² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38784316565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38784316567) 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, 13703291 + ... + 13706120.

It is an arithmetic number, because the mean of its divisors is an integer number (5838204756).

Almost surely, 2^38784316565 is an apocalyptic number.

It is an amenable number.

38784316565 is a deficient number, since it is larger than the sum of its proper divisors (7921321483).

38784316565 is a wasteful number, since it uses less digits than its factorization.

38784316565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27409699.

The product of its digits is 14515200, while the sum is 56.

The spelling of 38784316565 in words is "thirty-eight billion, seven hundred eighty-four million, three hundred sixteen thousand, five hundred sixty-five".