889772646277988 has 48 divisors (see below), whose sum is σ = 1718957144390976. Its totient is φ = 399637398188160.

The previous prime is 889772646277987. The next prime is 889772646278039.

889772646277988 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 889772646277894 and 889772646277903.

It is not an unprimeable number, because it can be changed into a prime (889772646277987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357319931 + ... + 359801442.

It is an arithmetic number, because the mean of its divisors is an integer number (35811607174812).

Almost surely, 2^{889772646277988} is an apocalyptic number.

It is an amenable number.

889772646277988 is a deficient number, since it is larger than the sum of its proper divisors (829184498112988).

889772646277988 is a wasteful number, since it uses less digits than its factorization.

889772646277988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717121724 (or 717121722 counting only the distinct ones).

The product of its digits is 458838245376, while the sum is 98.

The spelling of 889772646277988 in words is "eight hundred eighty-nine trillion, seven hundred seventy-two billion, six hundred forty-six million, two hundred seventy-seven thousand, nine hundred eighty-eight".