4145213793649 has 2 divisors, whose sum is σ = 4145213793650. Its totient is φ = 4145213793648.

The previous prime is 4145213793593. The next prime is 4145213793667. The reversal of 4145213793649 is 9463973125414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3971351480625 + 173862313024 = 1992825^2 + 416968^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145213793649 - 2²⁵ = 4145180239217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4145213793593 and 4145213793602.

It is not a weakly prime, because it can be changed into another prime (4145213793949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072606896824 + 2072606896825.

It is an arithmetic number, because the mean of its divisors is an integer number (2072606896825).

Almost surely, 2^{4145213793649} is an apocalyptic number.

It is an amenable number.

4145213793649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145213793649 is an equidigital number, since it uses as much as digits as its factorization.

4145213793649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 58.

The spelling of 4145213793649 in words is "four trillion, one hundred forty-five billion, two hundred thirteen million, seven hundred ninety-three thousand, six hundred forty-nine".