84322806577 has 4 divisors (see below), whose sum is σ = 84327156736. Its totient is φ = 84318456420.

The previous prime is 84322806571. The next prime is 84322806587. The reversal of 84322806577 is 77560822348.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84322806577 - 2²⁷ = 84188588849 is a prime.

It is a super-4 number, since 4×84322806577⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84322806571) 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, 2145873 + ... + 2184814.

It is an arithmetic number, because the mean of its divisors is an integer number (21081789184).

Almost surely, 2^84322806577 is an apocalyptic number.

It is an amenable number.

84322806577 is a deficient number, since it is larger than the sum of its proper divisors (4350159).

84322806577 is a wasteful number, since it uses less digits than its factorization.

84322806577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350158.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 84322806577 in words is "eighty-four billion, three hundred twenty-two million, eight hundred six thousand, five hundred seventy-seven".