856342243658 has 32 divisors (see below), whose sum is σ = 1404067312512. Its totient is φ = 388474777600.

The previous prime is 856342243643. The next prime is 856342243663.

856342243658 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37119035 + ... + 37142097.

It is an arithmetic number, because the mean of its divisors is an integer number (43877103516).

Almost surely, 2^856342243658 is an apocalyptic number.

856342243658 is a deficient number, since it is larger than the sum of its proper divisors (547725068854).

856342243658 is a wasteful number, since it uses less digits than its factorization.

856342243658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26350.

The product of its digits is 33177600, while the sum is 56.

The spelling of 856342243658 in words is "eight hundred fifty-six billion, three hundred forty-two million, two hundred forty-three thousand, six hundred fifty-eight".