20117700124589 has 2 divisors, whose sum is σ = 20117700124590. Its totient is φ = 20117700124588.

The previous prime is 20117700124573. The next prime is 20117700124663. The reversal of 20117700124589 is 98542100771102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10509299658025 + 9608400466564 = 3241805^2 + 3099742^2 .

It is a cyclic number.

It is not a de Polignac number, because 20117700124589 - 2⁴ = 20117700124573 is a prime.

It is a super-2 number, since 2×20117700124589² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20117700124559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058850062294 + 10058850062295.

It is an arithmetic number, because the mean of its divisors is an integer number (10058850062295).

Almost surely, 2^{20117700124589} is an apocalyptic number.

It is an amenable number.

20117700124589 is a deficient number, since it is larger than the sum of its proper divisors (1).

20117700124589 is an equidigital number, since it uses as much as digits as its factorization.

20117700124589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 20117700124589 in words is "twenty trillion, one hundred seventeen billion, seven hundred million, one hundred twenty-four thousand, five hundred eighty-nine".