88020011838 has 128 divisors (see below), whose sum is σ = 209976883200. Its totient is φ = 24297840000.

The previous prime is 88020011791. The next prime is 88020011839. The reversal of 88020011838 is 83811002088.

It is a junction number, because it is equal to n+sod(n) for n = 88020011796 and 88020011805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88020011839) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9123045 + ... + 9132687.

It is an arithmetic number, because the mean of its divisors is an integer number (1640444400).

Almost surely, 2^88020011838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88020011838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104988441600).

88020011838 is an abundant number, since it is smaller than the sum of its proper divisors (121956871362).

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

88020011838 is a wasteful number, since it uses less digits than its factorization.

88020011838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958.

The product of its (nonzero) digits is 24576, while the sum is 39.

The spelling of 88020011838 in words is "eighty-eight billion, twenty million, eleven thousand, eight hundred thirty-eight".