10245421236569 has 2 divisors, whose sum is σ = 10245421236570. Its totient is φ = 10245421236568.

The previous prime is 10245421236539. The next prime is 10245421236643. The reversal of 10245421236569 is 96563212454201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10097109984025 + 148311252544 = 3177595^2 + 385112^2 .

It is a cyclic number.

It is not a de Polignac number, because 10245421236569 - 2¹⁶ = 10245421171033 is a prime.

It is a super-2 number, since 2×10245421236569² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10245421236539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5122710618284 + 5122710618285.

It is an arithmetic number, because the mean of its divisors is an integer number (5122710618285).

Almost surely, 2^{10245421236569} is an apocalyptic number.

It is an amenable number.

10245421236569 is a deficient number, since it is larger than the sum of its proper divisors (1).

10245421236569 is an equidigital number, since it uses as much as digits as its factorization.

10245421236569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 10245421236569 in words is "ten trillion, two hundred forty-five billion, four hundred twenty-one million, two hundred thirty-six thousand, five hundred sixty-nine".