11934278400 has 432 divisors, whose sum is σ = 43413971328. Its totient is φ = 2886963200.

The previous prime is 11934278383. The next prime is 11934278467. The reversal of 11934278400 is 487243911.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25554967 + ... + 25555433.

It is an arithmetic number, because the mean of its divisors is an integer number (100495304).

Almost surely, 2^11934278400 is an apocalyptic number.

11934278400 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 11934278400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21706985664).

11934278400 is an abundant number, since it is smaller than the sum of its proper divisors (31479692928).

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

11934278400 is an equidigital number, since it uses as much as digits as its factorization.

11934278400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 11934278400 in words is "eleven billion, nine hundred thirty-four million, two hundred seventy-eight thousand, four hundred".