84567328481 has 4 divisors (see below), whose sum is σ = 84686606100. Its totient is φ = 84448050864.

The previous prime is 84567328477. The next prime is 84567328543. The reversal of 84567328481 is 18482376548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12992352256 + 71574976225 = 113984^2 + 267535^2 .

It is a cyclic number.

It is not a de Polignac number, because 84567328481 - 2² = 84567328477 is a prime.

It is a super-2 number, since 2×84567328481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84567321481) 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, 59637746 + ... + 59639163.

It is an arithmetic number, because the mean of its divisors is an integer number (21171651525).

Almost surely, 2^84567328481 is an apocalyptic number.

It is an amenable number.

84567328481 is a deficient number, since it is larger than the sum of its proper divisors (119277619).

84567328481 is a wasteful number, since it uses less digits than its factorization.

84567328481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119277618.

The product of its digits is 10321920, while the sum is 56.

The spelling of 84567328481 in words is "eighty-four billion, five hundred sixty-seven million, three hundred twenty-eight thousand, four hundred eighty-one".