11240780569 has 4 divisors (see below), whose sum is σ = 11241357696. Its totient is φ = 11240203444.

The previous prime is 11240780549. The next prime is 11240780587. The reversal of 11240780569 is 96508704211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11240780569 - 2³¹ = 9093296921 is a prime.

It is a super-2 number, since 2×11240780569² (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 (11240780549) 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, 258289 + ... + 298654.

It is an arithmetic number, because the mean of its divisors is an integer number (2810339424).

Almost surely, 2^11240780569 is an apocalyptic number.

It is an amenable number.

11240780569 is a deficient number, since it is larger than the sum of its proper divisors (577127).

11240780569 is an equidigital number, since it uses as much as digits as its factorization.

11240780569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577126.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 11240780569 in words is "eleven billion, two hundred forty million, seven hundred eighty thousand, five hundred sixty-nine".