989097544764 has 72 divisors (see below), whose sum is σ = 2918188535808. Its totient is φ = 276586544160.

The previous prime is 989097544759. The next prime is 989097544783. The reversal of 989097544764 is 467445790989.

989097544764 is a `hidden beast` number, since 9 + 8 + 9 + 0 + 9 + 7 + 544 + 76 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 989097544692 and 989097544701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41743372 + ... + 41767059.

Almost surely, 2^989097544764 is an apocalyptic number.

989097544764 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

989097544764 is an abundant number, since it is smaller than the sum of its proper divisors (1929090991044).

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

989097544764 is a wasteful number, since it uses less digits than its factorization.

989097544764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83510495 (or 83510490 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 72.

The spelling of 989097544764 in words is "nine hundred eighty-nine billion, ninety-seven million, five hundred forty-four thousand, seven hundred sixty-four".