8189409646079 has 8 divisors (see below), whose sum is σ = 8193627778560. Its totient is φ = 8185192493400.

The previous prime is 8189409646073. The next prime is 8189409646109. The reversal of 8189409646079 is 9706469049818.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8189409646079 - 2¹⁶ = 8189409580543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189409646073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16779164 + ... + 17260334.

It is an arithmetic number, because the mean of its divisors is an integer number (1024203472320).

Almost surely, 2^{8189409646079} is an apocalyptic number.

8189409646079 is a deficient number, since it is larger than the sum of its proper divisors (4218132481).

8189409646079 is a wasteful number, since it uses less digits than its factorization.

8189409646079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489901.

The product of its (nonzero) digits is 188116992, while the sum is 71.

The spelling of 8189409646079 in words is "eight trillion, one hundred eighty-nine billion, four hundred nine million, six hundred forty-six thousand, seventy-nine".