82049553568 has 24 divisors (see below), whose sum is σ = 161579995668. Its totient is φ = 41013364224.

The previous prime is 82049553563. The next prime is 82049553569. The reversal of 82049553568 is 86535594028.

It can be written as a sum of positive squares in 2 ways, for example, as 47135883664 + 34913669904 = 217108^2 + 186852^2 .

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (82049553563) 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, 239221 + ... + 470452.

Almost surely, 2^82049553568 is an apocalyptic number.

It is an amenable number.

82049553568 is a deficient number, since it is larger than the sum of its proper divisors (79530442100).

82049553568 is a wasteful number, since it uses less digits than its factorization.

82049553568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713296 (or 713288 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 55.

The spelling of 82049553568 in words is "eighty-two billion, forty-nine million, five hundred fifty-three thousand, five hundred sixty-eight".