259803215325349 has 2 divisors, whose sum is σ = 259803215325350. Its totient is φ = 259803215325348.

The previous prime is 259803215325319. The next prime is 259803215325413. The reversal of 259803215325349 is 943523512308952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234053832197124 + 25749383128225 = 15298818^2 + 5074385^2 .

It is a cyclic number.

It is not a de Polignac number, because 259803215325349 - 2²¹ = 259803213228197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259803215325319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129901607662674 + 129901607662675.

It is an arithmetic number, because the mean of its divisors is an integer number (129901607662675).

Almost surely, 2^{259803215325349} is an apocalyptic number.

It is an amenable number.

259803215325349 is a deficient number, since it is larger than the sum of its proper divisors (1).

259803215325349 is an equidigital number, since it uses as much as digits as its factorization.

259803215325349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984000, while the sum is 61.

The spelling of 259803215325349 in words is "two hundred fifty-nine trillion, eight hundred three billion, two hundred fifteen million, three hundred twenty-five thousand, three hundred forty-nine".