84564634265 has 4 divisors (see below), whose sum is σ = 101477561124. Its totient is φ = 67651707408.

The previous prime is 84564634247. The next prime is 84564634373. The reversal of 84564634265 is 56243646548.

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 52176153241 + 32388481024 = 228421^2 + 179968^2 .

It is a cyclic number.

It is not a de Polignac number, because 84564634265 - 2²⁴ = 84547857049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8456463422 + ... + 8456463431.

It is an arithmetic number, because the mean of its divisors is an integer number (25369390281).

Almost surely, 2^84564634265 is an apocalyptic number.

It is an amenable number.

84564634265 is a deficient number, since it is larger than the sum of its proper divisors (16912926859).

84564634265 is a wasteful number, since it uses less digits than its factorization.

84564634265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16912926858.

The product of its digits is 16588800, while the sum is 53.

The spelling of 84564634265 in words is "eighty-four billion, five hundred sixty-four million, six hundred thirty-four thousand, two hundred sixty-five".