84851411717829 has 4 divisors (see below), whose sum is σ = 113135215623776. Its totient is φ = 56567607811884.

The previous prime is 84851411717797. The next prime is 84851411717869. The reversal of 84851411717829 is 92871711415848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 84851411717829 - 2⁵ = 84851411717797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84851411717829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84851411717869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14141901952969 + ... + 14141901952974.

It is an arithmetic number, because the mean of its divisors is an integer number (28283803905944).

Almost surely, 2^{84851411717829} is an apocalyptic number.

It is an amenable number.

84851411717829 is a deficient number, since it is larger than the sum of its proper divisors (28283803905947).

84851411717829 is a wasteful number, since it uses less digits than its factorization.

84851411717829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28283803905946.

The product of its digits is 36126720, while the sum is 66.

The spelling of 84851411717829 in words is "eighty-four trillion, eight hundred fifty-one billion, four hundred eleven million, seven hundred seventeen thousand, eight hundred twenty-nine".