207506645089 has 2 divisors, whose sum is σ = 207506645090. Its totient is φ = 207506645088.

The previous prime is 207506645083. The next prime is 207506645113. The reversal of 207506645089 is 980546605702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173868150625 + 33638494464 = 416975^2 + 183408^2 .

It is a cyclic number.

It is not a de Polignac number, because 207506645089 - 2²¹ = 207504547937 is a prime.

It is not a weakly prime, because it can be changed into another prime (207506645083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103753322544 + 103753322545.

It is an arithmetic number, because the mean of its divisors is an integer number (103753322545).

Almost surely, 2^207506645089 is an apocalyptic number.

It is an amenable number.

207506645089 is a deficient number, since it is larger than the sum of its proper divisors (1).

207506645089 is an equidigital number, since it uses as much as digits as its factorization.

207506645089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 207506645089 in words is "two hundred seven billion, five hundred six million, six hundred forty-five thousand, eighty-nine".