698257972253 has 2 divisors, whose sum is σ = 698257972254. Its totient is φ = 698257972252.

The previous prime is 698257972249. The next prime is 698257972271. The reversal of 698257972253 is 352279752896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 658821175684 + 39436796569 = 811678^2 + 198587^2 .

It is a cyclic number.

It is not a de Polignac number, because 698257972253 - 2² = 698257972249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 698257972253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698257972453) 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, 349128986126 + 349128986127.

It is an arithmetic number, because the mean of its divisors is an integer number (349128986127).

Almost surely, 2^698257972253 is an apocalyptic number.

It is an amenable number.

698257972253 is a deficient number, since it is larger than the sum of its proper divisors (1).

698257972253 is an equidigital number, since it uses as much as digits as its factorization.

698257972253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 114307200, while the sum is 65.

The spelling of 698257972253 in words is "six hundred ninety-eight billion, two hundred fifty-seven million, nine hundred seventy-two thousand, two hundred fifty-three".