3838728254285 has 4 divisors (see below), whose sum is σ = 4606473905148. Its totient is φ = 3070982603424.

The previous prime is 3838728254279. The next prime is 3838728254299. The reversal of 3838728254285 is 5824528278383.

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 1199526562441 + 2639201691844 = 1095229^2 + 1624562^2 .

It is a cyclic number.

It is not a de Polignac number, because 3838728254285 - 2¹⁴ = 3838728237901 is a prime.

It is a super-2 number, since 2×3838728254285² (a number of 26 digits) contains 22 as substring.

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, 383872825424 + ... + 383872825433.

It is an arithmetic number, because the mean of its divisors is an integer number (1151618476287).

Almost surely, 2^{3838728254285} is an apocalyptic number.

It is an amenable number.

3838728254285 is a deficient number, since it is larger than the sum of its proper divisors (767745650863).

3838728254285 is an equidigital number, since it uses as much as digits as its factorization.

3838728254285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767745650862.

The product of its digits is 206438400, while the sum is 65.

The spelling of 3838728254285 in words is "three trillion, eight hundred thirty-eight billion, seven hundred twenty-eight million, two hundred fifty-four thousand, two hundred eighty-five".