889688780684 has 12 divisors (see below), whose sum is σ = 1698496763208. Its totient is φ = 404403991200.

The previous prime is 889688780657. The next prime is 889688780699. The reversal of 889688780684 is 486087886988.

It is a super-2 number, since 2×889688780684² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 889688780599 and 889688780608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10110099737 + ... + 10110099824.

It is an arithmetic number, because the mean of its divisors is an integer number (141541396934).

Almost surely, 2^889688780684 is an apocalyptic number.

It is an amenable number.

889688780684 is a deficient number, since it is larger than the sum of its proper divisors (808807982524).

889688780684 is a wasteful number, since it uses less digits than its factorization.

889688780684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20220199576 (or 20220199574 counting only the distinct ones).

The product of its (nonzero) digits is 2378170368, while the sum is 80.

The spelling of 889688780684 in words is "eight hundred eighty-nine billion, six hundred eighty-eight million, seven hundred eighty thousand, six hundred eighty-four".