989534786604 has 96 divisors (see below), whose sum is σ = 2841970145280. Its totient is φ = 260955157248.

The previous prime is 989534786599. The next prime is 989534786623. The reversal of 989534786604 is 406687435989.

989534786604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17250082 + ... + 17307350.

It is an arithmetic number, because the mean of its divisors is an integer number (29603855680).

Almost surely, 2^989534786604 is an apocalyptic number.

It is an amenable number.

989534786604 is an abundant number, since it is smaller than the sum of its proper divisors (1852435358676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989534786604 is a wasteful number, since it uses less digits than its factorization.

989534786604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73119 (or 73117 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 69.

The spelling of 989534786604 in words is "nine hundred eighty-nine billion, five hundred thirty-four million, seven hundred eighty-six thousand, six hundred four".