870641434140645 has 8 divisors (see below), whose sum is σ = 1393026294625056. Its totient is φ = 464342098208336.

The previous prime is 870641434140623. The next prime is 870641434140721. The reversal of 870641434140645 is 546041434146078.

It is a happy number.

870641434140645 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 not a de Polignac number, because 870641434140645 - 2⁸ = 870641434140389 is a prime.

It is a Curzon number.

It is a congruent 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, 29021381138007 + ... + 29021381138036.

It is an arithmetic number, because the mean of its divisors is an integer number (174128286828132).

Almost surely, 2^{870641434140645} is an apocalyptic number.

It is an amenable number.

870641434140645 is a deficient number, since it is larger than the sum of its proper divisors (522384860484411).

870641434140645 is a wasteful number, since it uses less digits than its factorization.

870641434140645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58042762276051.

The product of its (nonzero) digits is 30965760, while the sum is 57.

The spelling of 870641434140645 in words is "eight hundred seventy trillion, six hundred forty-one billion, four hundred thirty-four million, one hundred forty thousand, six hundred forty-five".