1534065213649 has 2 divisors, whose sum is σ = 1534065213650. Its totient is φ = 1534065213648.

The previous prime is 1534065213613. The next prime is 1534065213683. The reversal of 1534065213649 is 9463125604351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 917777412049 + 616287801600 = 958007^2 + 785040^2 .

It is an emirp because it is prime and its reverse (9463125604351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1534065213649 - 2⁷ = 1534065213521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1534065213449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767032606824 + 767032606825.

It is an arithmetic number, because the mean of its divisors is an integer number (767032606825).

Almost surely, 2^{1534065213649} is an apocalyptic number.

It is an amenable number.

1534065213649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1534065213649 is an equidigital number, since it uses as much as digits as its factorization.

1534065213649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 1534065213649 in words is "one trillion, five hundred thirty-four billion, sixty-five million, two hundred thirteen thousand, six hundred forty-nine".