84434676107709 has 4 divisors (see below), whose sum is σ = 112579568143616. Its totient is φ = 56289784071804.

The previous prime is 84434676107693. The next prime is 84434676107723. The reversal of 84434676107709 is 90770167643448.

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 84434676107709 - 2⁴ = 84434676107693 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 84434676107709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84434676107729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14072446017949 + ... + 14072446017954.

It is an arithmetic number, because the mean of its divisors is an integer number (28144892035904).

Almost surely, 2^{84434676107709} is an apocalyptic number.

It is an amenable number.

84434676107709 is a deficient number, since it is larger than the sum of its proper divisors (28144892035907).

84434676107709 is a wasteful number, since it uses less digits than its factorization.

84434676107709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28144892035906.

The product of its (nonzero) digits is 170698752, while the sum is 66.

The spelling of 84434676107709 in words is "eighty-four trillion, four hundred thirty-four billion, six hundred seventy-six million, one hundred seven thousand, seven hundred nine".