388846388485 has 4 divisors (see below), whose sum is σ = 466615666188. Its totient is φ = 311077110784.

The previous prime is 388846388459. The next prime is 388846388531. The reversal of 388846388485 is 584883648883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584883648883 = 97 ⋅6029728339.

It can be written as a sum of positive squares in 2 ways, for example, as 154620395524 + 234225992961 = 393218^2 + 483969^2 .

It is a cyclic number.

It is not a de Polignac number, because 388846388485 - 2⁵ = 388846388453 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, 38884638844 + ... + 38884638853.

It is an arithmetic number, because the mean of its divisors is an integer number (116653916547).

Almost surely, 2^388846388485 is an apocalyptic number.

It is an amenable number.

388846388485 is a deficient number, since it is larger than the sum of its proper divisors (77769277703).

388846388485 is an equidigital number, since it uses as much as digits as its factorization.

388846388485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77769277702.

The product of its digits is 1132462080, while the sum is 73.

The spelling of 388846388485 in words is "three hundred eighty-eight billion, eight hundred forty-six million, three hundred eighty-eight thousand, four hundred eighty-five".