698679653249 has 2 divisors, whose sum is σ = 698679653250. Its totient is φ = 698679653248.

The previous prime is 698679653233. The next prime is 698679653257. The reversal of 698679653249 is 942356976896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383922748225 + 314756905024 = 619615^2 + 561032^2 .

It is a cyclic number.

It is not a de Polignac number, because 698679653249 - 2⁴ = 698679653233 is a prime.

It is not a weakly prime, because it can be changed into another prime (698679653149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349339826624 + 349339826625.

It is an arithmetic number, because the mean of its divisors is an integer number (349339826625).

Almost surely, 2^698679653249 is an apocalyptic number.

It is an amenable number.

698679653249 is a deficient number, since it is larger than the sum of its proper divisors (1).

698679653249 is an equidigital number, since it uses as much as digits as its factorization.

698679653249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058158080, while the sum is 74.

The spelling of 698679653249 in words is "six hundred ninety-eight billion, six hundred seventy-nine million, six hundred fifty-three thousand, two hundred forty-nine".