82718523808 has 24 divisors (see below), whose sum is σ = 163258234020. Its totient is φ = 41256115200.

The previous prime is 82718523761. The next prime is 82718523827. The reversal of 82718523808 is 80832581728.

It can be written as a sum of positive squares in 2 ways, for example, as 52307349264 + 30411174544 = 228708^2 + 174388^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

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, 3210303 + ... + 3235966.

Almost surely, 2^82718523808 is an apocalyptic number.

It is an amenable number.

82718523808 is a deficient number, since it is larger than the sum of its proper divisors (80539710212).

82718523808 is a wasteful number, since it uses less digits than its factorization.

82718523808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446680 (or 6446672 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 82718523808 in words is "eighty-two billion, seven hundred eighteen million, five hundred twenty-three thousand, eight hundred eight".