889997799988 has 96 divisors (see below), whose sum is σ = 1838041486848. Its totient is φ = 372498432000.

The previous prime is 889997799973. The next prime is 889997800007.

889997799988 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 889997799893 and 889997799902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168781320 + ... + 168786592.

It is an arithmetic number, because the mean of its divisors is an integer number (19146265488).

Almost surely, 2^889997799988 is an apocalyptic number.

It is an amenable number.

889997799988 is an abundant number, since it is smaller than the sum of its proper divisors (948043686860).

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

889997799988 is a wasteful number, since it uses less digits than its factorization.

889997799988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153 (or 10151 counting only the distinct ones).

The product of its digits is 106662334464, while the sum is 100.

The spelling of 889997799988 in words is "eight hundred eighty-nine billion, nine hundred ninety-seven million, seven hundred ninety-nine thousand, nine hundred eighty-eight".