84559559557 has 4 divisors (see below), whose sum is σ = 92246792256. Its totient is φ = 76872326860.

The previous prime is 84559559531. The next prime is 84559559573. The reversal of 84559559557 is 75595595548.

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 a de Polignac number, because none of the positive numbers 2^k-84559559557 is a prime.

It is a super-2 number, since 2×84559559557² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84559559492 and 84559559501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84559559657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3843616333 + ... + 3843616354.

It is an arithmetic number, because the mean of its divisors is an integer number (23061698064).

Almost surely, 2^84559559557 is an apocalyptic number.

It is an amenable number.

84559559557 is a deficient number, since it is larger than the sum of its proper divisors (7687232699).

84559559557 is a wasteful number, since it uses less digits than its factorization.

84559559557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7687232698.

The product of its digits is 283500000, while the sum is 67.

The spelling of 84559559557 in words is "eighty-four billion, five hundred fifty-nine million, five hundred fifty-nine thousand, five hundred fifty-seven".