10655744849 has 2 divisors, whose sum is σ = 10655744850. Its totient is φ = 10655744848.

The previous prime is 10655744839. The next prime is 10655744921. The reversal of 10655744849 is 94844755601.

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., 10180810000 + 474934849 = 100900^2 + 21793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10655744849 is a prime.

It is a super-2 number, since 2×10655744849² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10655744849.

It is not a weakly prime, because it can be changed into another prime (10655744839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5327872424 + 5327872425.

It is an arithmetic number, because the mean of its divisors is an integer number (5327872425).

Almost surely, 2^10655744849 is an apocalyptic number.

It is an amenable number.

10655744849 is a deficient number, since it is larger than the sum of its proper divisors (1).

10655744849 is an equidigital number, since it uses as much as digits as its factorization.

10655744849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 10655744849 in words is "ten billion, six hundred fifty-five million, seven hundred forty-four thousand, eight hundred forty-nine".