11870455517 has 2 divisors, whose sum is σ = 11870455518. Its totient is φ = 11870455516.

The previous prime is 11870455483. The next prime is 11870455573. The reversal of 11870455517 is 71555407811.

11870455517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7868754436 + 4001701081 = 88706^2 + 63259^2 .

It is an emirp because it is prime and its reverse (71555407811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11870455517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11870455417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5935227758 + 5935227759.

It is an arithmetic number, because the mean of its divisors is an integer number (5935227759).

Almost surely, 2^11870455517 is an apocalyptic number.

It is an amenable number.

11870455517 is a deficient number, since it is larger than the sum of its proper divisors (1).

11870455517 is an equidigital number, since it uses as much as digits as its factorization.

11870455517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196000, while the sum is 44.

The spelling of 11870455517 in words is "eleven billion, eight hundred seventy million, four hundred fifty-five thousand, five hundred seventeen".