11257740547 has 4 divisors (see below), whose sum is σ = 11470150800. Its totient is φ = 11045330296.

The previous prime is 11257740491. The next prime is 11257740553. The reversal of 11257740547 is 74504775211.

11257740547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11257740547 - 2⁷ = 11257740419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11257740647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106205047 + ... + 106205152.

It is an arithmetic number, because the mean of its divisors is an integer number (2867537700).

Almost surely, 2^11257740547 is an apocalyptic number.

11257740547 is a deficient number, since it is larger than the sum of its proper divisors (212410253).

11257740547 is an equidigital number, since it uses as much as digits as its factorization.

11257740547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212410252.

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 11257740547 in words is "eleven billion, two hundred fifty-seven million, seven hundred forty thousand, five hundred forty-seven".