11778130209940 has 48 divisors (see below), whose sum is σ = 26201310093504. Its totient is φ = 4432038566400.

The previous prime is 11778130209913. The next prime is 11778130209947. The reversal of 11778130209940 is 4990203187711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778130209947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7403466 + ... + 8852545.

It is an arithmetic number, because the mean of its divisors is an integer number (545860626948).

Almost surely, 2^{11778130209940} is an apocalyptic number.

11778130209940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11778130209940 is an abundant number, since it is smaller than the sum of its proper divisors (14423179883564).

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

11778130209940 is a wasteful number, since it uses less digits than its factorization.

11778130209940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258168 (or 16258166 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 11778130209940 in words is "eleven trillion, seven hundred seventy-eight billion, one hundred thirty million, two hundred nine thousand, nine hundred forty".