88888889784 has 32 divisors (see below), whose sum is σ = 222339978000. Its totient is φ = 29613929472.

The previous prime is 88888889783. The next prime is 88888889813. The reversal of 88888889784 is 48798888888.

It is a junction number, because it is equal to n+sod(n) for n = 88888889697 and 88888889706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88888889783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934999 + ... + 1025670.

Almost surely, 2^88888889784 is an apocalyptic number.

It is an amenable number.

88888889784 is an abundant number, since it is smaller than the sum of its proper divisors (133451088216).

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

88888889784 is a wasteful number, since it uses less digits than its factorization.

88888889784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962567 (or 1962563 counting only the distinct ones).

The product of its digits is 4227858432, while the sum is 84.

The spelling of 88888889784 in words is "eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-nine thousand, seven hundred eighty-four".