989062945920 has 1280 divisors, whose sum is σ = 4223818368000. Its totient is φ = 218494402560.

The previous prime is 989062945859. The next prime is 989062945939. The reversal of 989062945920 is 29549260989.

989062945920 is a `hidden beast` number, since 98 + 90 + 6 + 2 + 9 + 459 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1286167296 + ... + 1286168064.

It is an arithmetic number, because the mean of its divisors is an integer number (3299858100).

Almost surely, 2^989062945920 is an apocalyptic number.

989062945920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989062945920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111909184000).

989062945920 is an abundant number, since it is smaller than the sum of its proper divisors (3234755422080).

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

989062945920 is an equidigital number, since it uses as much as digits as its factorization.

989062945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 989062945920 in words is "nine hundred eighty-nine billion, sixty-two million, nine hundred forty-five thousand, nine hundred twenty".