84634643648 has 28 divisors (see below), whose sum is σ = 167959018920. Its totient is φ = 42314260992.

The previous prime is 84634643647. The next prime is 84634643663.

84634643648 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 84634643593 and 84634643602.

It is not an unprimeable number, because it can be changed into a prime (84634643647) 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, 1033388 + ... + 1112276.

It is an arithmetic number, because the mean of its divisors is an integer number (5998536390).

Almost surely, 2^84634643648 is an apocalyptic number.

It is an amenable number.

84634643648 is a deficient number, since it is larger than the sum of its proper divisors (83324375272).

84634643648 is a wasteful number, since it uses less digits than its factorization.

84634643648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95664 (or 95654 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 56.

The spelling of 84634643648 in words is "eighty-four billion, six hundred thirty-four million, six hundred forty-three thousand, six hundred forty-eight".