1285799516753 has 2 divisors, whose sum is σ = 1285799516754. Its totient is φ = 1285799516752.

The previous prime is 1285799516731. The next prime is 1285799516761. The reversal of 1285799516753 is 3576159975821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1273801162384 + 11998354369 = 1128628^2 + 109537^2 .

It is an emirp because it is prime and its reverse (3576159975821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1285799516753 - 2¹⁸ = 1285799254609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1285792516753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642899758376 + 642899758377.

It is an arithmetic number, because the mean of its divisors is an integer number (642899758377).

Almost surely, 2^{1285799516753} is an apocalyptic number.

It is an amenable number.

1285799516753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285799516753 is an equidigital number, since it uses as much as digits as its factorization.

1285799516753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884000, while the sum is 68.

The spelling of 1285799516753 in words is "one trillion, two hundred eighty-five billion, seven hundred ninety-nine million, five hundred sixteen thousand, seven hundred fifty-three".