698445085348739 has 2 divisors, whose sum is σ = 698445085348740. Its totient is φ = 698445085348738.

The previous prime is 698445085348657. The next prime is 698445085348831. The reversal of 698445085348739 is 937843580544896.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-698445085348739 is a prime.

It is a super-2 number, since 2×698445085348739² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (698445085348939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349222542674369 + 349222542674370.

It is an arithmetic number, because the mean of its divisors is an integer number (349222542674370).

Almost surely, 2^{698445085348739} is an apocalyptic number.

698445085348739 is a deficient number, since it is larger than the sum of its proper divisors (1).

698445085348739 is an equidigital number, since it uses as much as digits as its factorization.

698445085348739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25082265600, while the sum is 83.

The spelling of 698445085348739 in words is "six hundred ninety-eight trillion, four hundred forty-five billion, eighty-five million, three hundred forty-eight thousand, seven hundred thirty-nine".