1152687641689 has 2 divisors, whose sum is σ = 1152687641690. Its totient is φ = 1152687641688.

The previous prime is 1152687641671. The next prime is 1152687641713. The reversal of 1152687641689 is 9861467862511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 955633329225 + 197054312464 = 977565^2 + 443908^2 .

It is an emirp because it is prime and its reverse (9861467862511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152687641689 - 2²⁵ = 1152654087257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1152687641689.

It is not a weakly prime, because it can be changed into another prime (1152687641489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576343820844 + 576343820845.

It is an arithmetic number, because the mean of its divisors is an integer number (576343820845).

Almost surely, 2^{1152687641689} is an apocalyptic number.

It is an amenable number.

1152687641689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152687641689 is an equidigital number, since it uses as much as digits as its factorization.

1152687641689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 64.

The spelling of 1152687641689 in words is "one trillion, one hundred fifty-two billion, six hundred eighty-seven million, six hundred forty-one thousand, six hundred eighty-nine".