245045559391 has 2 divisors, whose sum is σ = 245045559392. Its totient is φ = 245045559390.

The previous prime is 245045559301. The next prime is 245045559431. The reversal of 245045559391 is 193955540542.

245045559391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245045559391 - 2¹³ = 245045551199 is a prime.

It is a super-4 number, since 4×245045559391⁴ (a number of 47 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245045559301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122522779695 + 122522779696.

It is an arithmetic number, because the mean of its divisors is an integer number (122522779696).

Almost surely, 2^245045559391 is an apocalyptic number.

245045559391 is a deficient number, since it is larger than the sum of its proper divisors (1).

245045559391 is an equidigital number, since it uses as much as digits as its factorization.

245045559391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 245045559391 in words is "two hundred forty-five billion, forty-five million, five hundred fifty-nine thousand, three hundred ninety-one".