84555809863 has 8 divisors (see below), whose sum is σ = 96945937920. Its totient is φ = 72243363480.

The previous prime is 84555809827. The next prime is 84555809909. The reversal of 84555809863 is 36890855548.

It is a happy number.

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 84555809863 - 2¹⁷ = 84555678791 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 (84555809813) 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, 19418083 + ... + 19422436.

It is an arithmetic number, because the mean of its divisors is an integer number (12118242240).

Almost surely, 2^84555809863 is an apocalyptic number.

84555809863 is a deficient number, since it is larger than the sum of its proper divisors (12390128057).

84555809863 is a wasteful number, since it uses less digits than its factorization.

84555809863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38840837.

The product of its (nonzero) digits is 41472000, while the sum is 61.

The spelling of 84555809863 in words is "eighty-four billion, five hundred fifty-five million, eight hundred nine thousand, eight hundred sixty-three".