88779319866 has 80 divisors (see below), whose sum is σ = 200954476800. Its totient is φ = 29293684992.

The previous prime is 88779319859. The next prime is 88779319873. The reversal of 88779319866 is 66891397788.

It is an interprime number because it is at equal distance from previous prime (88779319859) and next prime (88779319873).

It is a junction number, because it is equal to n+sod(n) for n = 88779319794 and 88779319803.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 6459690 + ... + 6473418.

It is an arithmetic number, because the mean of its divisors is an integer number (2511930960).

Almost surely, 2^88779319866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88779319866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100477238400).

88779319866 is an abundant number, since it is smaller than the sum of its proper divisors (112175156934).

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

88779319866 is a wasteful number, since it uses less digits than its factorization.

88779319866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14145 (or 14136 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The spelling of 88779319866 in words is "eighty-eight billion, seven hundred seventy-nine million, three hundred nineteen thousand, eight hundred sixty-six".