1287082538633 has 2 divisors, whose sum is σ = 1287082538634. Its totient is φ = 1287082538632.

The previous prime is 1287082538627. The next prime is 1287082538663. The reversal of 1287082538633 is 3368352807821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1092520386169 + 194562152464 = 1045237^2 + 441092^2 .

It is an emirp because it is prime and its reverse (3368352807821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1287082538633 - 2¹⁶ = 1287082473097 is a prime.

It is a super-2 number, since 2×1287082538633² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1287082538663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643541269316 + 643541269317.

It is an arithmetic number, because the mean of its divisors is an integer number (643541269317).

Almost surely, 2^{1287082538633} is an apocalyptic number.

It is an amenable number.

1287082538633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287082538633 is an equidigital number, since it uses as much as digits as its factorization.

1287082538633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 1287082538633 in words is "one trillion, two hundred eighty-seven billion, eighty-two million, five hundred thirty-eight thousand, six hundred thirty-three".