82704764444868 has 84 divisors (see below), whose sum is σ = 217003524043180. Its totient is φ = 27567900904896.

The previous prime is 82704764444867. The next prime is 82704764444941. The reversal of 82704764444868 is 86844446740728.

It is a happy number.

82704764444868 is a `hidden beast` number, since 8 + 2 + 7 + 0 + 47 + 64 + 44 + 486 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57393078975684 + 25311685469184 = 7575822^2 + 5031072^2 .

It is a super-2 number, since 2×82704764444868² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82704764444796 and 82704764444805.

It is not an unprimeable number, because it can be changed into a prime (82704764444867) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 329117046 + ... + 329368242.

Almost surely, 2^{82704764444868} is an apocalyptic number.

It is an amenable number.

82704764444868 is an abundant number, since it is smaller than the sum of its proper divisors (134298759598312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82704764444868 is a wasteful number, since it uses less digits than its factorization.

82704764444868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364128 (or 364111 counting only the distinct ones).

The product of its (nonzero) digits is 1849688064, while the sum is 72.

The spelling of 82704764444868 in words is "eighty-two trillion, seven hundred four billion, seven hundred sixty-four million, four hundred forty-four thousand, eight hundred sixty-eight".