11104778272 has 72 divisors (see below), whose sum is σ = 25489219644. Its totient is φ = 4748470272.

The previous prime is 11104778257. The next prime is 11104778287. The reversal of 11104778272 is 27287740111.

It is an interprime number because it is at equal distance from previous prime (11104778257) and next prime (11104778287).

It can be written as a sum of positive squares in 2 ways, for example, as 8470625296 + 2634152976 = 92036^2 + 51324^2 .

It is a super-2 number, since 2×11104778272² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 708828 + ... + 724324.

Almost surely, 2^11104778272 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 11104778272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12744609822).

11104778272 is an abundant number, since it is smaller than the sum of its proper divisors (14384441372).

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

11104778272 is a wasteful number, since it uses less digits than its factorization.

11104778272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15978 (or 15963 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 40.

The spelling of 11104778272 in words is "eleven billion, one hundred four million, seven hundred seventy-eight thousand, two hundred seventy-two".