88019778588 has 144 divisors (see below), whose sum is σ = 245144872224. Its totient is φ = 24494346240.

The previous prime is 88019778559. The next prime is 88019778589. The reversal of 88019778588 is 88587791088.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88019778589) 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 47 ways as a sum of consecutive naturals, for example, 16318420 + ... + 16323812.

It is an arithmetic number, because the mean of its divisors is an integer number (1702394946).

Almost surely, 2^88019778588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88019778588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122572436112).

88019778588 is an abundant number, since it is smaller than the sum of its proper divisors (157125093636).

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

88019778588 is a wasteful number, since it uses less digits than its factorization.

88019778588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 69.

The spelling of 88019778588 in words is "eighty-eight billion, nineteen million, seven hundred seventy-eight thousand, five hundred eighty-eight".