11352721284 has 18 divisors (see below), whose sum is σ = 28697156670. Its totient is φ = 3784240416.

The previous prime is 11352721283. The next prime is 11352721291. The reversal of 11352721284 is 48212725311.

11352721284 is a `hidden beast` number, since 1 + 1 + 3 + 527 + 2 + 128 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7581533184 + 3771188100 = 87072^2 + 61410^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 315353369 = 11352721284 / (1 + 1 + 3 + 5 + 2 + 7 + 2 + 1 + 2 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (11352721283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157676649 + ... + 157676720.

Almost surely, 2^11352721284 is an apocalyptic number.

It is an amenable number.

11352721284 is an abundant number, since it is smaller than the sum of its proper divisors (17344435386).

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

11352721284 is a wasteful number, since it uses less digits than its factorization.

11352721284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315353379 (or 315353374 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The spelling of 11352721284 in words is "eleven billion, three hundred fifty-two million, seven hundred twenty-one thousand, two hundred eighty-four".