11782225361 has 2 divisors, whose sum is σ = 11782225362. Its totient is φ = 11782225360.

The previous prime is 11782225349. The next prime is 11782225379. The reversal of 11782225361 is 16352228711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11763571600 + 18653761 = 108460^2 + 4319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11782225361 is a prime.

It is not a weakly prime, because it can be changed into another prime (11782225321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891112680 + 5891112681.

It is an arithmetic number, because the mean of its divisors is an integer number (5891112681).

Almost surely, 2^11782225361 is an apocalyptic number.

It is an amenable number.

11782225361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11782225361 is an equidigital number, since it uses as much as digits as its factorization.

11782225361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The spelling of 11782225361 in words is "eleven billion, seven hundred eighty-two million, two hundred twenty-five thousand, three hundred sixty-one".