38727143285 has 4 divisors (see below), whose sum is σ = 46472571948. Its totient is φ = 30981714624.

The previous prime is 38727143269. The next prime is 38727143291. The reversal of 38727143285 is 58234172783.

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 10824113521 + 27903029764 = 104039^2 + 167042^2 .

It is a cyclic number.

It is not a de Polignac number, because 38727143285 - 2⁴ = 38727143269 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, 3872714324 + ... + 3872714333.

It is an arithmetic number, because the mean of its divisors is an integer number (11618142987).

Almost surely, 2^38727143285 is an apocalyptic number.

It is an amenable number.

38727143285 is a deficient number, since it is larger than the sum of its proper divisors (7745428663).

38727143285 is an equidigital number, since it uses as much as digits as its factorization.

38727143285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745428662.

The product of its digits is 2257920, while the sum is 50.

The spelling of 38727143285 in words is "thirty-eight billion, seven hundred twenty-seven million, one hundred forty-three thousand, two hundred eighty-five".