8189437108379 has 4 divisors (see below), whose sum is σ = 8545499591376. Its totient is φ = 7833374625384.

The previous prime is 8189437108327. The next prime is 8189437108417. The reversal of 8189437108379 is 9738017349818.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8189437108379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8189437108679) 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, 178031241464 + ... + 178031241509.

It is an arithmetic number, because the mean of its divisors is an integer number (2136374897844).

Almost surely, 2^{8189437108379} is an apocalyptic number.

8189437108379 is a deficient number, since it is larger than the sum of its proper divisors (356062482997).

8189437108379 is a wasteful number, since it uses less digits than its factorization.

8189437108379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356062482996.

The product of its (nonzero) digits is 73156608, while the sum is 68.

The spelling of 8189437108379 in words is "eight trillion, one hundred eighty-nine billion, four hundred thirty-seven million, one hundred eight thousand, three hundred seventy-nine".