889787787988 has 24 divisors (see below), whose sum is σ = 1698724649664. Its totient is φ = 404439739200.

The previous prime is 889787787953. The next prime is 889787787997.

889787787988 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 889787787896 and 889787787905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942753 + ... + 2356663.

It is an arithmetic number, because the mean of its divisors is an integer number (70780193736).

Almost surely, 2^889787787988 is an apocalyptic number.

It is an amenable number.

889787787988 is a deficient number, since it is larger than the sum of its proper divisors (808936861676).

889787787988 is a wasteful number, since it uses less digits than its factorization.

889787787988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462783 (or 462781 counting only the distinct ones).

The product of its digits is 50982027264, while the sum is 94.

The spelling of 889787787988 in words is "eight hundred eighty-nine billion, seven hundred eighty-seven million, seven hundred eighty-seven thousand, nine hundred eighty-eight".