38616818365 has 4 divisors (see below), whose sum is σ = 46340182044. Its totient is φ = 30893454688.

The previous prime is 38616818291. The next prime is 38616818371. The reversal of 38616818365 is 56381861683.

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 27962862841 + 10653955524 = 167221^2 + 103218^2 .

It is a cyclic number.

It is not a de Polignac number, because 38616818365 - 2¹¹ = 38616816317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3861681832 + ... + 3861681841.

It is an arithmetic number, because the mean of its divisors is an integer number (11585045511).

Almost surely, 2^38616818365 is an apocalyptic number.

It is an amenable number.

38616818365 is a deficient number, since it is larger than the sum of its proper divisors (7723363679).

38616818365 is an equidigital number, since it uses as much as digits as its factorization.

38616818365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723363678.

The product of its digits is 4976640, while the sum is 55.

The spelling of 38616818365 in words is "thirty-eight billion, six hundred sixteen million, eight hundred eighteen thousand, three hundred sixty-five".