38387756866285 has 4 divisors (see below), whose sum is σ = 46065308239548. Its totient is φ = 30710205493024.

The previous prime is 38387756866253. The next prime is 38387756866307. The reversal of 38387756866285 is 58266865778383.

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 28504291001481 + 9883465864804 = 5338941^2 + 3143798^2 .

It is a cyclic number.

It is not a de Polignac number, because 38387756866285 - 2⁵ = 38387756866253 is a prime.

It is a super-2 number, since 2×38387756866285² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38387756866199 and 38387756866208.

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, 3838775686624 + ... + 3838775686633.

It is an arithmetic number, because the mean of its divisors is an integer number (11516327059887).

Almost surely, 2^{38387756866285} is an apocalyptic number.

It is an amenable number.

38387756866285 is a deficient number, since it is larger than the sum of its proper divisors (7677551373263).

38387756866285 is an equidigital number, since it uses as much as digits as its factorization.

38387756866285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677551373262.

The product of its digits is 19508428800, while the sum is 82.

The spelling of 38387756866285 in words is "thirty-eight trillion, three hundred eighty-seven billion, seven hundred fifty-six million, eight hundred sixty-six thousand, two hundred eighty-five".