11478408984 has 96 divisors (see below), whose sum is σ = 35553323520. Its totient is φ = 3277245888.

The previous prime is 11478408983. The next prime is 11478408989. The reversal of 11478408984 is 48980487411.

11478408984 is a `hidden beast` number, since 1 + 147 + 8 + 408 + 98 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11478408984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478408983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790639 + ... + 805025.

It is an arithmetic number, because the mean of its divisors is an integer number (370347120).

Almost surely, 2^11478408984 is an apocalyptic number.

11478408984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11478408984 is an abundant number, since it is smaller than the sum of its proper divisors (24074914536).

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

11478408984 is a wasteful number, since it uses less digits than its factorization.

11478408984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15989 (or 15982 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 11478408984 in words is "eleven billion, four hundred seventy-eight million, four hundred eight thousand, nine hundred eighty-four".