11478494208 has 66 divisors (see below), whose sum is σ = 30610207524. Its totient is φ = 3824185344.

The previous prime is 11478494143. The next prime is 11478494221. The reversal of 11478494208 is 80249487411.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5937210 + ... + 5939142.

Almost surely, 2^11478494208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11478494208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15305103762).

11478494208 is an abundant number, since it is smaller than the sum of its proper divisors (19131713316).

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

11478494208 is an frugal number, since it uses more digits than its factorization.

11478494208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

Multiplying 11478494208 by its sum of digits (48), we get a square (550967721984 = 742272²).

11478494208 divided by its sum of digits (48) gives a square (239135296 = 15464²).

The spelling of 11478494208 in words is "eleven billion, four hundred seventy-eight million, four hundred ninety-four thousand, two hundred eight".