6990663465347 has 4 divisors (see below), whose sum is σ = 6991406135280. Its totient is φ = 6989920795416.

The previous prime is 6990663465329. The next prime is 6990663465367. The reversal of 6990663465347 is 7435643660996.

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 6990663465347 - 2³⁸ = 6715785558403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6990663465367) 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, 371320847 + ... + 371339672.

It is an arithmetic number, because the mean of its divisors is an integer number (1747851533820).

Almost surely, 2^{6990663465347} is an apocalyptic number.

6990663465347 is a deficient number, since it is larger than the sum of its proper divisors (742669933).

6990663465347 is an equidigital number, since it uses as much as digits as its factorization.

6990663465347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742669932.

The product of its (nonzero) digits is 529079040, while the sum is 68.

The spelling of 6990663465347 in words is "six trillion, nine hundred ninety billion, six hundred sixty-three million, four hundred sixty-five thousand, three hundred forty-seven".