889963684839 has 16 divisors (see below), whose sum is σ = 1321509688800. Its totient is φ = 591938886528.

The previous prime is 889963684837. The next prime is 889963684871. The reversal of 889963684839 is 938486369988.

It is not a de Polignac number, because 889963684839 - 2¹ = 889963684837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889963684837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38050224 + ... + 38073605.

It is an arithmetic number, because the mean of its divisors is an integer number (82594355550).

Almost surely, 2^889963684839 is an apocalyptic number.

889963684839 is a deficient number, since it is larger than the sum of its proper divisors (431546003961).

889963684839 is a wasteful number, since it uses less digits than its factorization.

889963684839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76124271 (or 76124265 counting only the distinct ones).

The product of its digits is 3869835264, while the sum is 81.

The spelling of 889963684839 in words is "eight hundred eighty-nine billion, nine hundred sixty-three million, six hundred eighty-four thousand, eight hundred thirty-nine".