856922424229658 has 32 divisors (see below), whose sum is σ = 1412659349756928. Its totient is φ = 388093227782400.

The previous prime is 856922424229657. The next prime is 856922424229687.

It is a happy number.

856922424229658 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×856922424229658² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (856922424229657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2245719110 + ... + 2246100657.

It is an arithmetic number, because the mean of its divisors is an integer number (44145604679904).

Almost surely, 2^{856922424229658} is an apocalyptic number.

856922424229658 is a deficient number, since it is larger than the sum of its proper divisors (555736925527270).

856922424229658 is a wasteful number, since it uses less digits than its factorization.

856922424229658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491819998.

The product of its digits is 2388787200, while the sum is 74.

The spelling of 856922424229658 in words is "eight hundred fifty-six trillion, nine hundred twenty-two billion, four hundred twenty-four million, two hundred twenty-nine thousand, six hundred fifty-eight".