20281030088569 has 2 divisors, whose sum is σ = 20281030088570. Its totient is φ = 20281030088568.

The previous prime is 20281030088507. The next prime is 20281030088603. The reversal of 20281030088569 is 96588003018202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19842570250000 + 438459838569 = 4454500^2 + 662163^2 .

It is a cyclic number.

It is not a de Polignac number, because 20281030088569 - 2¹¹ = 20281030086521 is a prime.

It is a super-2 number, since 2×20281030088569² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20281030088069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10140515044284 + 10140515044285.

It is an arithmetic number, because the mean of its divisors is an integer number (10140515044285).

Almost surely, 2^{20281030088569} is an apocalyptic number.

It is an amenable number.

20281030088569 is a deficient number, since it is larger than the sum of its proper divisors (1).

20281030088569 is an equidigital number, since it uses as much as digits as its factorization.

20281030088569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 20281030088569 in words is "twenty trillion, two hundred eighty-one billion, thirty million, eighty-eight thousand, five hundred sixty-nine".