11448979457 has 2 divisors, whose sum is σ = 11448979458. Its totient is φ = 11448979456.

The previous prime is 11448979447. The next prime is 11448979519. The reversal of 11448979457 is 75497984411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9328469056 + 2120510401 = 96584^2 + 46049^2 .

It is a cyclic number.

It is not a de Polignac number, because 11448979457 - 2⁶ = 11448979393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11448979396 and 11448979405.

It is not a weakly prime, because it can be changed into another prime (11448979447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5724489728 + 5724489729.

It is an arithmetic number, because the mean of its divisors is an integer number (5724489729).

Almost surely, 2^11448979457 is an apocalyptic number.

It is an amenable number.

11448979457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11448979457 is an equidigital number, since it uses as much as digits as its factorization.

11448979457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 59.

The spelling of 11448979457 in words is "eleven billion, four hundred forty-eight million, nine hundred seventy-nine thousand, four hundred fifty-seven".