84706521044 has 12 divisors (see below), whose sum is σ = 156956200884. Its totient is φ = 39861892224.

The previous prime is 84706521043. The next prime is 84706521077. The reversal of 84706521044 is 44012560748.

It can be written as a sum of positive squares in 2 ways, for example, as 26899936144 + 57806584900 = 164012^2 + 240430^2 .

It is a super-2 number, since 2×84706521044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84706520992 and 84706521010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84706521041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622841999 + ... + 622842134.

It is an arithmetic number, because the mean of its divisors is an integer number (13079683407).

Almost surely, 2^84706521044 is an apocalyptic number.

It is an amenable number.

84706521044 is a deficient number, since it is larger than the sum of its proper divisors (72249679840).

84706521044 is a wasteful number, since it uses less digits than its factorization.

84706521044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245684154 (or 1245684152 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 84706521044 in words is "eighty-four billion, seven hundred six million, five hundred twenty-one thousand, forty-four".