84042525719 has 4 divisors (see below), whose sum is σ = 84545774544. Its totient is φ = 83539276896.

The previous prime is 84042525667. The next prime is 84042525761. The reversal of 84042525719 is 91752524048.

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 84042525719 - 2²⁸ = 83774090263 is a prime.

It is a super-2 number, since 2×84042525719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84042575719) 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, 251624162 + ... + 251624495.

It is an arithmetic number, because the mean of its divisors is an integer number (21136443636).

Almost surely, 2^84042525719 is an apocalyptic number.

84042525719 is a deficient number, since it is larger than the sum of its proper divisors (503248825).

84042525719 is a wasteful number, since it uses less digits than its factorization.

84042525719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503248824.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 84042525719 in words is "eighty-four billion, forty-two million, five hundred twenty-five thousand, seven hundred nineteen".