816482029649 has 12 divisors (see below), whose sum is σ = 966490490868. Its totient is φ = 685159743840.

The previous prime is 816482029607. The next prime is 816482029651. The reversal of 816482029649 is 946920284618.

It can be written as a sum of positive squares in 2 ways, for example, as 277762729024 + 538719300625 = 527032^2 + 733975^2 .

It is not a de Polignac number, because 816482029649 - 2²⁸ = 816213594193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816482089649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259528634 + ... + 259531779.

It is an arithmetic number, because the mean of its divisors is an integer number (80540874239).

Almost surely, 2^816482029649 is an apocalyptic number.

It is an amenable number.

816482029649 is a deficient number, since it is larger than the sum of its proper divisors (150008461219).

816482029649 is a wasteful number, since it uses less digits than its factorization.

816482029649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519060448 (or 519060437 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 59.

The spelling of 816482029649 in words is "eight hundred sixteen billion, four hundred eighty-two million, twenty-nine thousand, six hundred forty-nine".