870641434140643 has 8 divisors (see below), whose sum is σ = 951678907232256. Its totient is φ = 789918669683400.

The previous prime is 870641434140623. The next prime is 870641434140721. The reversal of 870641434140643 is 346041434146078.

870641434140643 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-870641434140643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870641434140623) 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, 78677152803 + ... + 78677163868.

It is an arithmetic number, because the mean of its divisors is an integer number (118959863404032).

Almost surely, 2^{870641434140643} is an apocalyptic number.

870641434140643 is a deficient number, since it is larger than the sum of its proper divisors (81037473091613).

870641434140643 is a wasteful number, since it uses less digits than its factorization.

870641434140643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157354317185.

The product of its (nonzero) digits is 18579456, while the sum is 55.

The spelling of 870641434140643 in words is "eight hundred seventy trillion, six hundred forty-one billion, four hundred thirty-four million, one hundred forty thousand, six hundred forty-three".