11056263439 has 4 divisors (see below), whose sum is σ = 11906745256. Its totient is φ = 10205781624.

The previous prime is 11056263437. The next prime is 11056263443. The reversal of 11056263439 is 93436265011.

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 11056263439 - 2¹ = 11056263437 is a prime.

It is a super-2 number, since 2×11056263439² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056263437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425240889 + ... + 425240914.

It is an arithmetic number, because the mean of its divisors is an integer number (2976686314).

Almost surely, 2^11056263439 is an apocalyptic number.

11056263439 is a deficient number, since it is larger than the sum of its proper divisors (850481817).

11056263439 is an equidigital number, since it uses as much as digits as its factorization.

11056263439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850481816.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 11056263439 in words is "eleven billion, fifty-six million, two hundred sixty-three thousand, four hundred thirty-nine".