698168657899 has 2 divisors, whose sum is σ = 698168657900. Its totient is φ = 698168657898.

The previous prime is 698168657873. The next prime is 698168657983. The reversal of 698168657899 is 998756861896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698168657899 - 2¹³ = 698168649707 is a prime.

It is not a weakly prime, because it can be changed into another prime (698168652899) 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, 349084328949 + 349084328950.

It is an arithmetic number, because the mean of its divisors is an integer number (349084328950).

Almost surely, 2^698168657899 is an apocalyptic number.

698168657899 is a deficient number, since it is larger than the sum of its proper divisors (1).

698168657899 is an equidigital number, since it uses as much as digits as its factorization.

698168657899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2821754880, while the sum is 82.

The spelling of 698168657899 in words is "six hundred ninety-eight billion, one hundred sixty-eight million, six hundred fifty-seven thousand, eight hundred ninety-nine".