84072189365 has 4 divisors (see below), whose sum is σ = 100886627244. Its totient is φ = 67257751488.

The previous prime is 84072189329. The next prime is 84072189373. The reversal of 84072189365 is 56398127048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43414306321 + 40657883044 = 208361^2 + 201638^2 .

It is a cyclic number.

It is not a de Polignac number, because 84072189365 - 2²⁸ = 83803753909 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, 8407218932 + ... + 8407218941.

It is an arithmetic number, because the mean of its divisors is an integer number (25221656811).

It is a 1-persistent number, because it is pandigital, but 2⋅84072189365 = 168144378730 is not.

Almost surely, 2^84072189365 is an apocalyptic number.

It is an amenable number.

84072189365 is a deficient number, since it is larger than the sum of its proper divisors (16814437879).

84072189365 is a wasteful number, since it uses less digits than its factorization.

84072189365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16814437878.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 84072189365 in words is "eighty-four billion, seventy-two million, one hundred eighty-nine thousand, three hundred sixty-five".