38628227485 has 4 divisors (see below), whose sum is σ = 46353872988. Its totient is φ = 30902581984.

The previous prime is 38628227483. The next prime is 38628227527. The reversal of 38628227485 is 58472282683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58472282683 = 79 ⋅740155477.

It can be written as a sum of positive squares in 2 ways, for example, as 14405040441 + 24223187044 = 120021^2 + 155638^2 .

It is a cyclic number.

It is not a de Polignac number, because 38628227485 - 2¹ = 38628227483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38628227483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3862822744 + ... + 3862822753.

It is an arithmetic number, because the mean of its divisors is an integer number (11588468247).

Almost surely, 2^38628227485 is an apocalyptic number.

It is an amenable number.

38628227485 is a deficient number, since it is larger than the sum of its proper divisors (7725645503).

38628227485 is an equidigital number, since it uses as much as digits as its factorization.

38628227485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7725645502.

The product of its digits is 10321920, while the sum is 55.

The spelling of 38628227485 in words is "thirty-eight billion, six hundred twenty-eight million, two hundred twenty-seven thousand, four hundred eighty-five".