245006750861 has 2 divisors, whose sum is σ = 245006750862. Its totient is φ = 245006750860.

The previous prime is 245006750843. The next prime is 245006750873. The reversal of 245006750861 is 168057600542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175096218025 + 69910532836 = 418445^2 + 264406^2 .

It is a cyclic number.

It is not a de Polignac number, because 245006750861 - 2¹⁴ = 245006734477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245006750881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122503375430 + 122503375431.

It is an arithmetic number, because the mean of its divisors is an integer number (122503375431).

Almost surely, 2^245006750861 is an apocalyptic number.

It is an amenable number.

245006750861 is a deficient number, since it is larger than the sum of its proper divisors (1).

245006750861 is an equidigital number, since it uses as much as digits as its factorization.

245006750861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 245006750861 in words is "two hundred forty-five billion, six million, seven hundred fifty thousand, eight hundred sixty-one".