11768228497 has 4 divisors (see below), whose sum is σ = 11833246516. Its totient is φ = 11703210480.

The previous prime is 11768228431. The next prime is 11768228501. The reversal of 11768228497 is 79482286711.

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 106172416 + 11662056081 = 10304^2 + 107991^2 .

It is a cyclic number.

It is not a de Polignac number, because 11768228497 - 2²⁷ = 11634010769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11768226497) 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, 32508738 + ... + 32509099.

It is an arithmetic number, because the mean of its divisors is an integer number (2958311629).

Almost surely, 2^11768228497 is an apocalyptic number.

It is an amenable number.

11768228497 is a deficient number, since it is larger than the sum of its proper divisors (65018019).

11768228497 is an equidigital number, since it uses as much as digits as its factorization.

11768228497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65018018.

The product of its digits is 2709504, while the sum is 55.

The spelling of 11768228497 in words is "eleven billion, seven hundred sixty-eight million, two hundred twenty-eight thousand, four hundred ninety-seven".