989472274988 has 24 divisors (see below), whose sum is σ = 1734602520000. Its totient is φ = 493871768208.

The previous prime is 989472274969. The next prime is 989472274997. The reversal of 989472274988 is 889472274989.

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, 22725263 + ... + 22768761.

It is an arithmetic number, because the mean of its divisors is an integer number (72275105000).

Almost surely, 2^989472274988 is an apocalyptic number.

It is an amenable number.

989472274988 is a deficient number, since it is larger than the sum of its proper divisors (745130245012).

989472274988 is a wasteful number, since it uses less digits than its factorization.

989472274988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53309 (or 53307 counting only the distinct ones).

The product of its digits is 1170505728, while the sum is 77.

Subtracting from 989472274988 its reverse (889472274989), we obtain a palindrome (99999999999).

The spelling of 989472274988 in words is "nine hundred eighty-nine billion, four hundred seventy-two million, two hundred seventy-four thousand, nine hundred eighty-eight".