1027641962989 has 2 divisors, whose sum is σ = 1027641962990. Its totient is φ = 1027641962988.

The previous prime is 1027641962917. The next prime is 1027641962993. The reversal of 1027641962989 is 9892691467201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023249587364 + 4392375625 = 1011558^2 + 66275^2 .

It is an emirp because it is prime and its reverse (9892691467201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1027641962989 - 2¹³ = 1027641954797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1027641962989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1027641963989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513820981494 + 513820981495.

It is an arithmetic number, because the mean of its divisors is an integer number (513820981495).

Almost surely, 2^{1027641962989} is an apocalyptic number.

It is an amenable number.

1027641962989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027641962989 is an equidigital number, since it uses as much as digits as its factorization.

1027641962989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 1027641962989 in words is "one trillion, twenty-seven billion, six hundred forty-one million, nine hundred sixty-two thousand, nine hundred eighty-nine".