11261597228 has 48 divisors (see below), whose sum is σ = 22995861504. Its totient is φ = 4725829440.

The previous prime is 11261597227. The next prime is 11261597239. The reversal of 11261597228 is 82279516211.

It is not an unprimeable number, because it can be changed into a prime (11261597227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366101 + ... + 395667.

It is an arithmetic number, because the mean of its divisors is an integer number (479080448).

Almost surely, 2^11261597228 is an apocalyptic number.

It is an amenable number.

11261597228 is an abundant number, since it is smaller than the sum of its proper divisors (11734264276).

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

11261597228 is a wasteful number, since it uses less digits than its factorization.

11261597228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29862 (or 29860 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The spelling of 11261597228 in words is "eleven billion, two hundred sixty-one million, five hundred ninety-seven thousand, two hundred twenty-eight".