10989780984 has 384 divisors, whose sum is σ = 38477537280. Its totient is φ = 2755814400.

The previous prime is 10989780983. The next prime is 10989781001. The reversal of 10989780984 is 48908798901.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989780983) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12389389 + ... + 12390275.

It is an arithmetic number, because the mean of its divisors is an integer number (100201920).

Almost surely, 2^10989780984 is an apocalyptic number.

10989780984 is a gapful number since it is divisible by the number (14) 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 10989780984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19238768640).

10989780984 is an abundant number, since it is smaller than the sum of its proper divisors (27487756296).

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

10989780984 is a wasteful number, since it uses less digits than its factorization.

10989780984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 10989780984 in words is "ten billion, nine hundred eighty-nine million, seven hundred eighty thousand, nine hundred eighty-four".