245294899009 has 2 divisors, whose sum is σ = 245294899010. Its totient is φ = 245294899008.

The previous prime is 245294899001. The next prime is 245294899013. The reversal of 245294899009 is 900998492542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243539289009 + 1755610000 = 493497^2 + 41900^2 .

It is a cyclic number.

It is not a de Polignac number, because 245294899009 - 2³ = 245294899001 is a prime.

It is not a weakly prime, because it can be changed into another prime (245294899001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122647449504 + 122647449505.

It is an arithmetic number, because the mean of its divisors is an integer number (122647449505).

Almost surely, 2^245294899009 is an apocalyptic number.

It is an amenable number.

245294899009 is a deficient number, since it is larger than the sum of its proper divisors (1).

245294899009 is an equidigital number, since it uses as much as digits as its factorization.

245294899009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 245294899009 in words is "two hundred forty-five billion, two hundred ninety-four million, eight hundred ninety-nine thousand, nine".