38870836408565 has 12 divisors (see below), whose sum is σ = 54260514497196. Its totient is φ = 26654287822848.

The previous prime is 38870836408507. The next prime is 38870836408567. The reversal of 38870836408565 is 56580463807883.

38870836408565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30924520804324 + 7946315604241 = 5560982^2 + 2818921^2 .

It is not a de Polignac number, because 38870836408565 - 2⁸ = 38870836408309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38870836408567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79328237324 + ... + 79328237813.

It is an arithmetic number, because the mean of its divisors is an integer number (4521709541433).

Almost surely, 2^{38870836408565} is an apocalyptic number.

38870836408565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38870836408565 is a deficient number, since it is larger than the sum of its proper divisors (15389678088631).

38870836408565 is a wasteful number, since it uses less digits than its factorization.

38870836408565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158656475156 (or 158656475149 counting only the distinct ones).

The product of its (nonzero) digits is 928972800, while the sum is 71.

The spelling of 38870836408565 in words is "thirty-eight trillion, eight hundred seventy billion, eight hundred thirty-six million, four hundred eight thousand, five hundred sixty-five".