84521328492 has 12 divisors (see below), whose sum is σ = 197216433176. Its totient is φ = 28173776160.

The previous prime is 84521328481. The next prime is 84521328499. The reversal of 84521328492 is 29482312548.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (84521328499) 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, 3521722009 + ... + 3521722032.

Almost surely, 2^84521328492 is an apocalyptic number.

It is an amenable number.

84521328492 is an abundant number, since it is smaller than the sum of its proper divisors (112695104684).

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

84521328492 is a wasteful number, since it uses less digits than its factorization.

84521328492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043444048 (or 7043444046 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The spelling of 84521328492 in words is "eighty-four billion, five hundred twenty-one million, three hundred twenty-eight thousand, four hundred ninety-two".