11381630272 has 28 divisors (see below), whose sum is σ = 22763276800. Its totient is φ = 5646001536.

The previous prime is 11381630219. The next prime is 11381630279. The reversal of 11381630272 is 27203618311.

11381630272 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381630279) 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, 692022 + ... + 708277.

Almost surely, 2^11381630272 is an apocalyptic number.

It is an amenable number.

11381630272 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.

11381630272 is a wasteful number, since it uses less digits than its factorization.

11381630272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400438 (or 1400428 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 11381630272 in words is "eleven billion, three hundred eighty-one million, six hundred thirty thousand, two hundred seventy-two".