82704343784801 has 4 divisors (see below), whose sum is σ = 82704366560532. Its totient is φ = 82704321009072.

The previous prime is 82704343784749. The next prime is 82704343784849. The reversal of 82704343784801 is 10848734340728.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75783971749201 + 6920372035600 = 8705399^2 + 2630660^2 .

It is a cyclic number.

It is not a de Polignac number, because 82704343784801 - 2²² = 82704339590497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82704343784861) 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, 4587266 + ... + 13654731.

It is an arithmetic number, because the mean of its divisors is an integer number (20676091640133).

Almost surely, 2^{82704343784801} is an apocalyptic number.

It is an amenable number.

82704343784801 is a deficient number, since it is larger than the sum of its proper divisors (22775731).

82704343784801 is a wasteful number, since it uses less digits than its factorization.

82704343784801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22775730.

The product of its (nonzero) digits is 28901376, while the sum is 59.

The spelling of 82704343784801 in words is "eighty-two trillion, seven hundred four billion, three hundred forty-three million, seven hundred eighty-four thousand, eight hundred one".