385612519441 has 16 divisors (see below), whose sum is σ = 408742543440. Its totient is φ = 363142635520.

The previous prime is 385612519373. The next prime is 385612519517. The reversal of 385612519441 is 144915216583.

It can be written as a sum of positive squares in 8 ways, for example, as 151457180625 + 234155338816 = 389175^2 + 483896^2 .

It is a cyclic number.

It is not a de Polignac number, because 385612519441 - 2¹⁵ = 385612486673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385612519141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4903665 + ... + 4981681.

It is an arithmetic number, because the mean of its divisors is an integer number (25546408965).

Almost surely, 2^385612519441 is an apocalyptic number.

It is an amenable number.

385612519441 is a deficient number, since it is larger than the sum of its proper divisors (23130023999).

385612519441 is a wasteful number, since it uses less digits than its factorization.

385612519441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82244.

The product of its digits is 1036800, while the sum is 49.

The spelling of 385612519441 in words is "three hundred eighty-five billion, six hundred twelve million, five hundred nineteen thousand, four hundred forty-one".