11803841280 has 648 divisors, whose sum is σ = 51853982544. Its totient is φ = 2451456000.

The previous prime is 11803841267. The next prime is 11803841281. The reversal of 11803841280 is 8214830811.

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

It is not an unprimeable number, because it can be changed into a prime (11803841281) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6208330 + ... + 6210230.

It is an arithmetic number, because the mean of its divisors is an integer number (80021578).

Almost surely, 2^11803841280 is an apocalyptic number.

11803841280 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 11803841280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25926991272).

11803841280 is an abundant number, since it is smaller than the sum of its proper divisors (40050141264).

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

11803841280 is a wasteful number, since it uses less digits than its factorization.

11803841280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 11803841280 in words is "eleven billion, eight hundred three million, eight hundred forty-one thousand, two hundred eighty".