207083918861 has 2 divisors, whose sum is σ = 207083918862. Its totient is φ = 207083918860.

The previous prime is 207083918857. The next prime is 207083918879. The reversal of 207083918861 is 168819380702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187965602500 + 19118316361 = 433550^2 + 138269^2 .

It is a cyclic number.

It is not a de Polignac number, because 207083918861 - 2² = 207083918857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207083918851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103541959430 + 103541959431.

It is an arithmetic number, because the mean of its divisors is an integer number (103541959431).

Almost surely, 2^207083918861 is an apocalyptic number.

It is an amenable number.

207083918861 is a deficient number, since it is larger than the sum of its proper divisors (1).

207083918861 is an equidigital number, since it uses as much as digits as its factorization.

207083918861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 207083918861 in words is "two hundred seven billion, eighty-three million, nine hundred eighteen thousand, eight hundred sixty-one".