84564786813607 has 4 divisors (see below), whose sum is σ = 84564908838976. Its totient is φ = 84564664788240.

The previous prime is 84564786813601. The next prime is 84564786813641. The reversal of 84564786813607 is 70631868746548.

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

It is a cyclic number.

It is not a de Polignac number, because 84564786813607 - 2²⁷ = 84564652595879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84564786813607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84564786813601) 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, 59967198 + ... + 61361179.

It is an arithmetic number, because the mean of its divisors is an integer number (21141227209744).

Almost surely, 2^{84564786813607} is an apocalyptic number.

84564786813607 is a deficient number, since it is larger than the sum of its proper divisors (122025369).

84564786813607 is a wasteful number, since it uses less digits than its factorization.

84564786813607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122025368.

The product of its (nonzero) digits is 1300561920, while the sum is 73.

The spelling of 84564786813607 in words is "eighty-four trillion, five hundred sixty-four billion, seven hundred eighty-six million, eight hundred thirteen thousand, six hundred seven".