3189689431505 has 8 divisors (see below), whose sum is σ = 3857766116352. Its totient is φ = 2531659012848.

The previous prime is 3189689431457. The next prime is 3189689431517. The reversal of 3189689431505 is 5051349869813.

3189689431505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3189689431505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511565847 + ... + 2511567116.

It is an arithmetic number, because the mean of its divisors is an integer number (482220764544).

Almost surely, 2^{3189689431505} is an apocalyptic number.

It is an amenable number.

3189689431505 is a deficient number, since it is larger than the sum of its proper divisors (668076684847).

3189689431505 is a wasteful number, since it uses less digits than its factorization.

3189689431505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023133095.

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 3189689431505 in words is "three trillion, one hundred eighty-nine billion, six hundred eighty-nine million, four hundred thirty-one thousand, five hundred five".