1022642265769 has 2 divisors, whose sum is σ = 1022642265770. Its totient is φ = 1022642265768.

The previous prime is 1022642265731. The next prime is 1022642265893. The reversal of 1022642265769 is 9675622462201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 889650763369 + 132991502400 = 943213^2 + 364680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022642265769 - 2²⁷ = 1022508048041 is a prime.

It is a super-2 number, since 2×1022642265769² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1022642265719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511321132884 + 511321132885.

It is an arithmetic number, because the mean of its divisors is an integer number (511321132885).

Almost surely, 2^{1022642265769} is an apocalyptic number.

It is an amenable number.

1022642265769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022642265769 is an equidigital number, since it uses as much as digits as its factorization.

1022642265769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1022642265769 in words is "one trillion, twenty-two billion, six hundred forty-two million, two hundred sixty-five thousand, seven hundred sixty-nine".