86820444822 has 16 divisors (see below), whose sum is σ = 174610952640. Its totient is φ = 28778471112.

The previous prime is 86820444793. The next prime is 86820444839. The reversal of 86820444822 is 22844402868.

It is a super-2 number, since 2×86820444822² (a number of 23 digits) contains 22 as substring.

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, 40418128 + ... + 40420275.

It is an arithmetic number, because the mean of its divisors is an integer number (10913184540).

Almost surely, 2^86820444822 is an apocalyptic number.

86820444822 is an abundant number, since it is smaller than the sum of its proper divisors (87790507818).

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

86820444822 is a wasteful number, since it uses less digits than its factorization.

86820444822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80838587.

The product of its (nonzero) digits is 1572864, while the sum is 48.

The spelling of 86820444822 in words is "eighty-six billion, eight hundred twenty million, four hundred forty-four thousand, eight hundred twenty-two".