84335644836 has 81 divisors (see below), whose sum is σ = 220918716291. Its totient is φ = 27126243648.

The previous prime is 84335644763. The next prime is 84335644847. The reversal of 84335644836 is 63844653348.

The square root of 84335644836 is 290406.

It is a perfect power (a square), and thus also a powerful number.

84335644836 is a `hidden beast` number, since 8 + 4 + 3 + 3 + 564 + 48 + 36 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 282038436 + 84053606400 = 16794^2 + 289920^2 .

It is a super-2 number, since 2×84335644836² (a number of 23 digits) contains 22 as substring.

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 in 26 ways as a sum of consecutive naturals, for example, 50529810 + ... + 50531478.

Almost surely, 2^84335644836 is an apocalyptic number.

84335644836 is the 290406-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84335644836

84335644836 is an abundant number, since it is smaller than the sum of its proper divisors (136583071455).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84335644836 is a wasteful number, since it uses less digits than its factorization.

84335644836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 1703 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 54.

The spelling of 84335644836 in words is "eighty-four billion, three hundred thirty-five million, six hundred forty-four thousand, eight hundred thirty-six".