84556805005 has 8 divisors (see below), whose sum is σ = 101472254712. Its totient is φ = 67642718208.

The previous prime is 84556804993. The next prime is 84556805009. The reversal of 84556805005 is 50050865548.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7961814441 + 76594990564 = 89229^2 + 276758^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84556805005 - 2⁵ = 84556804973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84556805009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198864 + ... + 456793.

It is an arithmetic number, because the mean of its divisors is an integer number (12684031839).

Almost surely, 2^84556805005 is an apocalyptic number.

It is an amenable number.

84556805005 is a deficient number, since it is larger than the sum of its proper divisors (16915449707).

84556805005 is a wasteful number, since it uses less digits than its factorization.

84556805005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681455.

The product of its (nonzero) digits is 960000, while the sum is 46.

The spelling of 84556805005 in words is "eighty-four billion, five hundred fifty-six million, eight hundred five thousand, five".