84387425064 has 16 divisors (see below), whose sum is σ = 210968562720.
Its totient is φ = 28129141680.
The previous prime is 84387425041. The next prime is 84387425117. The reversal of 84387425064 is 46052478348.
It is a junction number, because it is equal to n+sod(n) for n = 84387424998 and 84387425016.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758071332 + ... + 1758071379.
It is an arithmetic number, because the mean of its divisors is an integer number (13185535170).
Almost surely, 284387425064 is an apocalyptic number.
It is an amenable number.
84387425064 is an abundant number, since it is smaller than the sum of its proper divisors (126581137656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
84387425064 is a wasteful number, since it uses less digits than its factorization.
84387425064 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3516142720 (or 3516142716 counting only the distinct ones).
The product of its (nonzero) digits is 5160960, while the sum is 51.
The spelling of 84387425064 in words is "eighty-four billion, three hundred eighty-seven million, four hundred twenty-five thousand, sixty-four".