11049373457 has 4 divisors (see below), whose sum is σ = 11130025956. Its totient is φ = 10968720960.

The previous prime is 11049373453. The next prime is 11049373537. The reversal of 11049373457 is 75437394011.

It is a Cunningham number, because it is equal to 105116²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6490558096 + 4558815361 = 80564^2 + 67519^2 .

It is a cyclic number.

It is not a de Polignac number, because 11049373457 - 2² = 11049373453 is a prime.

It is a super-2 number, since 2×11049373457² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11049373453) 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, 40326044 + ... + 40326317.

It is an arithmetic number, because the mean of its divisors is an integer number (2782506489).

Almost surely, 2^11049373457 is an apocalyptic number.

It is an amenable number.

11049373457 is a deficient number, since it is larger than the sum of its proper divisors (80652499).

11049373457 is an equidigital number, since it uses as much as digits as its factorization.

11049373457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80652498.

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 11049373457 in words is "eleven billion, forty-nine million, three hundred seventy-three thousand, four hundred fifty-seven".