11272315257 has 24 divisors (see below), whose sum is σ = 18653806080. Its totient is φ = 6425559360.

The previous prime is 11272315217. The next prime is 11272315267. The reversal of 11272315257 is 75251327211.

11272315257 is a `hidden beast` number, since 1 + 127 + 2 + 3 + 1 + 525 + 7 = 666.

It is not a de Polignac number, because 11272315257 - 2¹¹ = 11272313209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11272315207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192969 + ... + 244502.

It is an arithmetic number, because the mean of its divisors is an integer number (777241920).

Almost surely, 2^11272315257 is an apocalyptic number.

It is an amenable number.

11272315257 is a deficient number, since it is larger than the sum of its proper divisors (7381490823).

11272315257 is a wasteful number, since it uses less digits than its factorization.

11272315257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437893 (or 437890 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The spelling of 11272315257 in words is "eleven billion, two hundred seventy-two million, three hundred fifteen thousand, two hundred fifty-seven".