84524440856 has 8 divisors (see below), whose sum is σ = 158483326620. Its totient is φ = 42262220424.

The previous prime is 84524440823. The next prime is 84524440867. The reversal of 84524440856 is 65804442548.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×84524440856² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5282777546 + ... + 5282777561.

Almost surely, 2^84524440856 is an apocalyptic number.

It is an amenable number.

84524440856 is a deficient number, since it is larger than the sum of its proper divisors (73958885764).

84524440856 is a wasteful number, since it uses less digits than its factorization.

84524440856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10565555113 (or 10565555109 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 50.

The spelling of 84524440856 in words is "eighty-four billion, five hundred twenty-four million, four hundred forty thousand, eight hundred fifty-six".