981236928060 has 144 divisors (see below), whose sum is σ = 3107831781600. Its totient is φ = 250279045632.

The previous prime is 981236928011. The next prime is 981236928071. The reversal of 981236928060 is 60829632189.

It is a junction number, because it is equal to n+sod(n) for n = 981236927988 and 981236928006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319855 + ... + 1436934.

It is an arithmetic number, because the mean of its divisors is an integer number (21582165150).

Almost surely, 2^981236928060 is an apocalyptic number.

981236928060 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 981236928060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553915890800).

981236928060 is an abundant number, since it is smaller than the sum of its proper divisors (2126594853540).

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

981236928060 is a wasteful number, since it uses less digits than its factorization.

981236928060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756940 (or 1756935 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 981236928060 in words is "nine hundred eighty-one billion, two hundred thirty-six million, nine hundred twenty-eight thousand, sixty".