11994840000 has 840 divisors, whose sum is σ = 50690111472. Its totient is φ = 2672640000.

The previous prime is 11994839999. The next prime is 11994840001. The reversal of 11994840000 is 4849911.

It is an interprime number because it is at equal distance from previous prime (11994839999) and next prime (11994840001).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11994840001) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 51479884 + ... + 51480116.

Almost surely, 2^11994840000 is an apocalyptic number.

11994840000 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 11994840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25345055736).

11994840000 is an abundant number, since it is smaller than the sum of its proper divisors (38695271472).

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

11994840000 is a wasteful number, since it uses less digits than its factorization.

11994840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 11994840000 in words is "eleven billion, nine hundred ninety-four million, eight hundred forty thousand".