88819975782 has 48 divisors (see below), whose sum is σ = 198085305600. Its totient is φ = 28742224896.

The previous prime is 88819975753. The next prime is 88819975807. The reversal of 88819975782 is 28757991888.

It is a self number, because there is not a number n which added to its sum of digits gives 88819975782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150523 + ... + 447545.

It is an arithmetic number, because the mean of its divisors is an integer number (4126777200).

Almost surely, 2^88819975782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88819975782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99042652800).

88819975782 is an abundant number, since it is smaller than the sum of its proper divisors (109265329818).

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

88819975782 is a wasteful number, since it uses less digits than its factorization.

88819975782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297517 (or 297514 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 72.

It can be divided in two parts, 88819 and 975782, that added together give a palindrome (1064601).

The spelling of 88819975782 in words is "eighty-eight billion, eight hundred nineteen million, nine hundred seventy-five thousand, seven hundred eighty-two".