84721334255 has 4 divisors (see below), whose sum is σ = 101665601112. Its totient is φ = 67777067400.

The previous prime is 84721334219. The next prime is 84721334263. The reversal of 84721334255 is 55243312748.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84721334255 - 2¹² = 84721330159 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 8472133421 + ... + 8472133430.

It is an arithmetic number, because the mean of its divisors is an integer number (25416400278).

Almost surely, 2^84721334255 is an apocalyptic number.

84721334255 is a deficient number, since it is larger than the sum of its proper divisors (16944266857).

84721334255 is a wasteful number, since it uses less digits than its factorization.

84721334255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16944266856.

The product of its digits is 806400, while the sum is 44.

The spelling of 84721334255 in words is "eighty-four billion, seven hundred twenty-one million, three hundred thirty-four thousand, two hundred fifty-five".