11449240897 has 2 divisors, whose sum is σ = 11449240898. Its totient is φ = 11449240896.

The previous prime is 11449240883. The next prime is 11449240961. The reversal of 11449240897 is 79804294411.

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., 11449214001 + 26896 = 107001^2 + 164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11449240897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11449240897.

It is not a weakly prime, because it can be changed into another prime (11449240807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5724620448 + 5724620449.

It is an arithmetic number, because the mean of its divisors is an integer number (5724620449).

Almost surely, 2^11449240897 is an apocalyptic number.

It is an amenable number.

11449240897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11449240897 is an equidigital number, since it uses as much as digits as its factorization.

11449240897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 11449240897 in words is "eleven billion, four hundred forty-nine million, two hundred forty thousand, eight hundred ninety-seven".