856042240658 has 8 divisors (see below), whose sum is σ = 1400796393840. Its totient is φ = 389110109380.

The previous prime is 856042240633. The next prime is 856042240661.

856042240658 is nontrivially palindromic in base 10.

856042240658 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19455505448 + ... + 19455505491.

It is an arithmetic number, because the mean of its divisors is an integer number (175099549230).

Almost surely, 2^856042240658 is an apocalyptic number.

856042240658 is a deficient number, since it is larger than the sum of its proper divisors (544754153182).

856042240658 is a wasteful number, since it uses less digits than its factorization.

856042240658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38911010952.

The product of its (nonzero) digits is 3686400, while the sum is 50.

The spelling of 856042240658 in words is "eight hundred fifty-six billion, forty-two million, two hundred forty thousand, six hundred fifty-eight".