11268763409 has 4 divisors (see below), whose sum is σ = 11861856240. Its totient is φ = 10675670580.

The previous prime is 11268763397. The next prime is 11268763423. The reversal of 11268763409 is 90436786211.

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 11268763409 - 2⁴ = 11268763393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11268763489) 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, 296546387 + ... + 296546424.

It is an arithmetic number, because the mean of its divisors is an integer number (2965464060).

Almost surely, 2^11268763409 is an apocalyptic number.

11268763409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11268763409 is a deficient number, since it is larger than the sum of its proper divisors (593092831).

11268763409 is an equidigital number, since it uses as much as digits as its factorization.

11268763409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593092830.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 11268763409 in words is "eleven billion, two hundred sixty-eight million, seven hundred sixty-three thousand, four hundred nine".