11959889760 has 480 divisors, whose sum is σ = 51953977152. Its totient is φ = 2523156480.

The previous prime is 11959889743. The next prime is 11959889779. The reversal of 11959889760 is 6798895911.

It is a tau number, because it is divible by the number of its divisors (480).

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 polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1174290 + ... + 1184430.

Almost surely, 2^11959889760 is an apocalyptic number.

11959889760 is a gapful number since it is divisible by the number (10) 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 11959889760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25976988576).

11959889760 is an abundant number, since it is smaller than the sum of its proper divisors (39994087392).

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

11959889760 is a wasteful number, since it uses less digits than its factorization.

11959889760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10188 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 11959889760 in words is "eleven billion, nine hundred fifty-nine million, eight hundred eighty-nine thousand, seven hundred sixty".