84164809902 has 32 divisors (see below), whose sum is σ = 171191438880. Its totient is φ = 27578517120.

The previous prime is 84164809879. The next prime is 84164809913. The reversal of 84164809902 is 20990846148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551724 + ... + 687552.

It is an arithmetic number, because the mean of its divisors is an integer number (5349732465).

Almost surely, 2^84164809902 is an apocalyptic number.

84164809902 is an abundant number, since it is smaller than the sum of its proper divisors (87026628978).

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

84164809902 is a wasteful number, since it uses less digits than its factorization.

84164809902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137588.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 84164809902 in words is "eighty-four billion, one hundred sixty-four million, eight hundred nine thousand, nine hundred two".