11478364772 has 12 divisors (see below), whose sum is σ = 22956729600. Its totient is φ = 4919299176.

The previous prime is 11478364771. The next prime is 11478364801. The reversal of 11478364772 is 27746387411.

11478364772 is an admirable number.

It is a super-2 number, since 2×11478364772² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11478364772.

It is not an unprimeable number, because it can be changed into a prime (11478364771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204970772 + ... + 204970827.

It is an arithmetic number, because the mean of its divisors is an integer number (1913060800).

Almost surely, 2^11478364772 is an apocalyptic number.

It is an amenable number.

11478364772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11478364772 is a wasteful number, since it uses less digits than its factorization.

11478364772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409941610 (or 409941608 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 50.

The spelling of 11478364772 in words is "eleven billion, four hundred seventy-eight million, three hundred sixty-four thousand, seven hundred seventy-two".