84320634920 has 16 divisors (see below), whose sum is σ = 189721428660. Its totient is φ = 33728253952.

The previous prime is 84320634901. The next prime is 84320634971. The reversal of 84320634920 is 2943602348.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83693332804 + 627302116 = 289298^2 + 25046^2 .

84320634920 is a modest number, since divided by 634920 gives 84320 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054007897 + ... + 1054007976.

Almost surely, 2^84320634920 is an apocalyptic number.

It is an amenable number.

84320634920 is an abundant number, since it is smaller than the sum of its proper divisors (105400793740).

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

84320634920 is a wasteful number, since it uses less digits than its factorization.

84320634920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108015884 (or 2108015880 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 84320634920 in words is "eighty-four billion, three hundred twenty million, six hundred thirty-four thousand, nine hundred twenty".