11903819080 has 128 divisors (see below), whose sum is σ = 28998453600. Its totient is φ = 4387848192.

The previous prime is 11903819063. The next prime is 11903819087. The reversal of 11903819080 is 8091830911.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 8118370404 + 3785448676 = 90102^2 + 61526^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (11903819087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272144 + ... + 2277376.

Almost surely, 2^11903819080 is an apocalyptic number.

11903819080 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 11903819080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14499226800).

11903819080 is an abundant number, since it is smaller than the sum of its proper divisors (17094634520).

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

11903819080 is a wasteful number, since it uses less digits than its factorization.

11903819080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363 (or 5359 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 40.

The spelling of 11903819080 in words is "eleven billion, nine hundred three million, eight hundred nineteen thousand, eighty".