11272345757 has 4 divisors (see below), whose sum is σ = 11485031580. Its totient is φ = 11059659936.

The previous prime is 11272345691. The next prime is 11272345801. The reversal of 11272345757 is 75754327211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75754327211 = 12577 ⋅6023243.

It can be written as a sum of positive squares in 2 ways, for example, as 8101980121 + 3170365636 = 90011^2 + 56306^2 .

It is a cyclic number.

It is not a de Polignac number, because 11272345757 - 2²⁶ = 11205236893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272345957) 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 3 ways as a sum of consecutive naturals, for example, 106342832 + ... + 106342937.

It is an arithmetic number, because the mean of its divisors is an integer number (2871257895).

Almost surely, 2^11272345757 is an apocalyptic number.

It is an amenable number.

11272345757 is a deficient number, since it is larger than the sum of its proper divisors (212685823).

11272345757 is an equidigital number, since it uses as much as digits as its factorization.

11272345757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212685822.

The product of its digits is 411600, while the sum is 44.

The spelling of 11272345757 in words is "eleven billion, two hundred seventy-two million, three hundred forty-five thousand, seven hundred fifty-seven".