385912751648 has 54 divisors (see below), whose sum is σ = 765067314879. Its totient is φ = 191619244032.

The previous prime is 385912751641. The next prime is 385912751659. The reversal of 385912751648 is 846157219583.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 8312333584 + 377600418064 = 91172^2 + 614492^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=439268.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385912751641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 678229508 + ... + 678230076.

Almost surely, 2^385912751648 is an apocalyptic number.

It is an amenable number.

385912751648 is a deficient number, since it is larger than the sum of its proper divisors (379154563231).

385912751648 is an frugal number, since it uses more digits than its factorization.

385912751648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 764 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 59.

The spelling of 385912751648 in words is "three hundred eighty-five billion, nine hundred twelve million, seven hundred fifty-one thousand, six hundred forty-eight".