11573272026 has 24 divisors (see below), whose sum is σ = 25101772020. Its totient is φ = 3853703616.

The previous prime is 11573272021. The next prime is 11573272037. The reversal of 11573272026 is 62027237511.

11573272026 is a `hidden beast` number, since 11 + 573 + 2 + 72 + 0 + 2 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11217987225 + 355284801 = 105915^2 + 18849^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11573272021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320181 + ... + 354488.

Almost surely, 2^11573272026 is an apocalyptic number.

11573272026 is an abundant number, since it is smaller than the sum of its proper divisors (13528499994).

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

11573272026 is a wasteful number, since it uses less digits than its factorization.

11573272026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675630 (or 675627 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 11573272026 in words is "eleven billion, five hundred seventy-three million, two hundred seventy-two thousand, twenty-six".