84364126499 has 4 divisors (see below), whose sum is σ = 86644238064. Its totient is φ = 82084014936.

The previous prime is 84364126493. The next prime is 84364126501. The reversal of 84364126499 is 99462146348.

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

It is a cyclic number.

It is not a de Polignac number, because 84364126499 - 2²⁰ = 84363077923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84364126493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140055727 + ... + 1140055800.

It is an arithmetic number, because the mean of its divisors is an integer number (21661059516).

Almost surely, 2^84364126499 is an apocalyptic number.

84364126499 is a deficient number, since it is larger than the sum of its proper divisors (2280111565).

84364126499 is a wasteful number, since it uses less digits than its factorization.

84364126499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280111564.

The product of its digits is 8957952, while the sum is 56.

The spelling of 84364126499 in words is "eighty-four billion, three hundred sixty-four million, one hundred twenty-six thousand, four hundred ninety-nine".