245404035563653 has 2 divisors, whose sum is σ = 245404035563654. Its totient is φ = 245404035563652.

The previous prime is 245404035563641. The next prime is 245404035563707. The reversal of 245404035563653 is 356365530404542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130875041443969 + 114528994119684 = 11440063^2 + 10701822^2 .

It is a cyclic number.

It is not a de Polignac number, because 245404035563653 - 2⁴¹ = 243205012308101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245404035563594 and 245404035563603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245404035563153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122702017781826 + 122702017781827.

It is an arithmetic number, because the mean of its divisors is an integer number (122702017781827).

Almost surely, 2^{245404035563653} is an apocalyptic number.

It is an amenable number.

245404035563653 is a deficient number, since it is larger than the sum of its proper divisors (1).

245404035563653 is an equidigital number, since it uses as much as digits as its factorization.

245404035563653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760000, while the sum is 55.

The spelling of 245404035563653 in words is "two hundred forty-five trillion, four hundred four billion, thirty-five million, five hundred sixty-three thousand, six hundred fifty-three".