856988753622 has 16 divisors (see below), whose sum is σ = 1760301224112. Its totient is φ = 277942298400.

The previous prime is 856988753611. The next prime is 856988753627. The reversal of 856988753622 is 226357889658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856988753627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930154629 + ... + 1930155072.

It is an arithmetic number, because the mean of its divisors is an integer number (110018826507).

Almost surely, 2^856988753622 is an apocalyptic number.

856988753622 is an abundant number, since it is smaller than the sum of its proper divisors (903312470490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

856988753622 is a wasteful number, since it uses less digits than its factorization.

856988753622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860309743.

The product of its digits is 348364800, while the sum is 69.

The spelling of 856988753622 in words is "eight hundred fifty-six billion, nine hundred eighty-eight million, seven hundred fifty-three thousand, six hundred twenty-two".