14775012513649 has 2 divisors, whose sum is σ = 14775012513650. Its totient is φ = 14775012513648.

The previous prime is 14775012513581. The next prime is 14775012513673. The reversal of 14775012513649 is 94631521057741.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8636545440000 + 6138467073649 = 2938800^2 + 2477593^2 .

It is an emirp because it is prime and its reverse (94631521057741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14775012513649 - 2¹³ = 14775012505457 is a prime.

It is a super-2 number, since 2×14775012513649² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14775012513649.

It is not a weakly prime, because it can be changed into another prime (14775012513049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7387506256824 + 7387506256825.

It is an arithmetic number, because the mean of its divisors is an integer number (7387506256825).

Almost surely, 2^{14775012513649} is an apocalyptic number.

It is an amenable number.

14775012513649 is a deficient number, since it is larger than the sum of its proper divisors (1).

14775012513649 is an equidigital number, since it uses as much as digits as its factorization.

14775012513649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 14775012513649 in words is "fourteen trillion, seven hundred seventy-five billion, twelve million, five hundred thirteen thousand, six hundred forty-nine".