1399675244663 has 4 divisors (see below), whose sum is σ = 1403685775800. Its totient is φ = 1395664713528.

The previous prime is 1399675244599. The next prime is 1399675244731. The reversal of 1399675244663 is 3664425769931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1399675244663 - 2⁶ = 1399675244599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1399675244663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399675244263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005265045 + ... + 2005265742.

It is an arithmetic number, because the mean of its divisors is an integer number (350921443950).

Almost surely, 2^{1399675244663} is an apocalyptic number.

1399675244663 is a deficient number, since it is larger than the sum of its proper divisors (4010531137).

1399675244663 is an equidigital number, since it uses as much as digits as its factorization.

1399675244663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010531136.

The product of its digits is 176359680, while the sum is 65.

The spelling of 1399675244663 in words is "one trillion, three hundred ninety-nine billion, six hundred seventy-five million, two hundred forty-four thousand, six hundred sixty-three".