84720052126 has 16 divisors (see below), whose sum is σ = 135113711040. Its totient is φ = 39702827520.

The previous prime is 84720052099. The next prime is 84720052129. The reversal of 84720052126 is 62125002748.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84720052129) 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 7 ways as a sum of consecutive naturals, for example, 5161446 + ... + 5177833.

It is an arithmetic number, because the mean of its divisors is an integer number (8444606940).

Almost surely, 2^84720052126 is an apocalyptic number.

84720052126 is a deficient number, since it is larger than the sum of its proper divisors (50393658914).

84720052126 is a wasteful number, since it uses less digits than its factorization.

84720052126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10339539.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 84720052126 in words is "eighty-four billion, seven hundred twenty million, fifty-two thousand, one hundred twenty-six".