989499247752 has 32 divisors (see below), whose sum is σ = 2581302386880. Its totient is φ = 315492513600.

The previous prime is 989499247691. The next prime is 989499247753. The reversal of 989499247752 is 257742994989.

It is a super-3 number, since 3×989499247752³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (989499247753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896284999 + ... + 896286102.

It is an arithmetic number, because the mean of its divisors is an integer number (80665699590).

Almost surely, 2^989499247752 is an apocalyptic number.

989499247752 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

989499247752 is an abundant number, since it is smaller than the sum of its proper divisors (1591803139128).

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

989499247752 is a wasteful number, since it uses less digits than its factorization.

989499247752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792571133 (or 1792571129 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 75.

The spelling of 989499247752 in words is "nine hundred eighty-nine billion, four hundred ninety-nine million, two hundred forty-seven thousand, seven hundred fifty-two".