1398304260697 has 4 divisors (see below), whose sum is σ = 1417998686976. Its totient is φ = 1378609834420.

The previous prime is 1398304260673. The next prime is 1398304260709. The reversal of 1398304260697 is 7960624038931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1398304260697 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398304267697) 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 in 3 ways as a sum of consecutive naturals, for example, 9847213033 + ... + 9847213174.

It is an arithmetic number, because the mean of its divisors is an integer number (354499671744).

Almost surely, 2^{1398304260697} is an apocalyptic number.

It is an amenable number.

1398304260697 is a deficient number, since it is larger than the sum of its proper divisors (19694426279).

1398304260697 is an equidigital number, since it uses as much as digits as its factorization.

1398304260697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19694426278.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 1398304260697 in words is "one trillion, three hundred ninety-eight billion, three hundred four million, two hundred sixty thousand, six hundred ninety-seven".