84136832520 has 96 divisors (see below), whose sum is σ = 273320308800. Its totient is φ = 20710599936.

The previous prime is 84136832509. The next prime is 84136832567. The reversal of 84136832520 is 2523863148.

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 23 ways as a sum of consecutive naturals, for example, 2054100 + ... + 2094659.

It is an arithmetic number, because the mean of its divisors is an integer number (2847086550).

Almost surely, 2^84136832520 is an apocalyptic number.

It is an amenable number.

84136832520 is an abundant number, since it is smaller than the sum of its proper divisors (189183476280).

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

84136832520 is a wasteful number, since it uses less digits than its factorization.

84136832520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148799 (or 4148782 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 84136832520 in words is "eighty-four billion, one hundred thirty-six million, eight hundred thirty-two thousand, five hundred twenty".