11564460289 has 2 divisors, whose sum is σ = 11564460290. Its totient is φ = 11564460288.

The previous prime is 11564460277. The next prime is 11564460343. The reversal of 11564460289 is 98206446511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6396000625 + 5168459664 = 79975^2 + 71892^2 .

It is an emirp because it is prime and its reverse (98206446511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11564460289 - 2¹⁵ = 11564427521 is a prime.

It is not a weakly prime, because it can be changed into another prime (11564460989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782230144 + 5782230145.

It is an arithmetic number, because the mean of its divisors is an integer number (5782230145).

Almost surely, 2^11564460289 is an apocalyptic number.

It is an amenable number.

11564460289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11564460289 is an equidigital number, since it uses as much as digits as its factorization.

11564460289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 11564460289 in words is "eleven billion, five hundred sixty-four million, four hundred sixty thousand, two hundred eighty-nine".