11591262743 has 4 divisors (see below), whose sum is σ = 11665092600. Its totient is φ = 11517432888.

The previous prime is 11591262737. The next prime is 11591262791. The reversal of 11591262743 is 34726219511.

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 11591262743 - 2¹⁰ = 11591261719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11591262743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11591262703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36914693 + ... + 36915006.

It is an arithmetic number, because the mean of its divisors is an integer number (2916273150).

Almost surely, 2^11591262743 is an apocalyptic number.

11591262743 is a deficient number, since it is larger than the sum of its proper divisors (73829857).

11591262743 is an equidigital number, since it uses as much as digits as its factorization.

11591262743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73829856.

The product of its digits is 90720, while the sum is 41.

The spelling of 11591262743 in words is "eleven billion, five hundred ninety-one million, two hundred sixty-two thousand, seven hundred forty-three".