11778978096 has 80 divisors (see below), whose sum is σ = 33898782720. Its totient is φ = 3916019520.

The previous prime is 11778978091. The next prime is 11778978097. The reversal of 11778978096 is 69087987711.

It is not an unprimeable number, because it can be changed into a prime (11778978091) 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, 129861 + ... + 201051.

It is an arithmetic number, because the mean of its divisors is an integer number (423734784).

Almost surely, 2^11778978096 is an apocalyptic number.

11778978096 is a gapful number since it is divisible by the number (16) 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 11778978096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16949391360).

11778978096 is an abundant number, since it is smaller than the sum of its proper divisors (22119804624).

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

11778978096 is a wasteful number, since it uses less digits than its factorization.

11778978096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71591 (or 71579 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 63.

The spelling of 11778978096 in words is "eleven billion, seven hundred seventy-eight million, nine hundred seventy-eight thousand, ninety-six".