11007743557 has 4 divisors (see below), whose sum is σ = 11108732140. Its totient is φ = 10906754976.

The previous prime is 11007743543. The next prime is 11007743567. The reversal of 11007743557 is 75534770011.

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 7556651041 + 3451092516 = 86929^2 + 58746^2 .

It is a cyclic number.

It is not a de Polignac number, because 11007743557 - 2¹¹ = 11007741509 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 (11007743567) 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, 50494128 + ... + 50494345.

It is an arithmetic number, because the mean of its divisors is an integer number (2777183035).

Almost surely, 2^11007743557 is an apocalyptic number.

It is an amenable number.

11007743557 is a deficient number, since it is larger than the sum of its proper divisors (100988583).

11007743557 is a wasteful number, since it uses less digits than its factorization.

11007743557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100988582.

The product of its (nonzero) digits is 102900, while the sum is 40.

The spelling of 11007743557 in words is "eleven billion, seven million, seven hundred forty-three thousand, five hundred fifty-seven".