6965643973 has 4 divisors (see below), whose sum is σ = 6966635040. Its totient is φ = 6964652908.

The previous prime is 6965643953. The next prime is 6965643991. The reversal of 6965643973 is 3793465696.

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-6965643973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6965643913) 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, 484915 + ... + 499072.

It is an arithmetic number, because the mean of its divisors is an integer number (1741658760).

Almost surely, 2^6965643973 is an apocalyptic number.

It is an amenable number.

6965643973 is a deficient number, since it is larger than the sum of its proper divisors (991067).

6965643973 is an equidigital number, since it uses as much as digits as its factorization.

6965643973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991066.

The product of its digits is 22044960, while the sum is 58.

The square root of 6965643973 is about 83460.4335778338. The cubic root of 6965643973 is about 1909.7964909309.

The spelling of 6965643973 in words is "six billion, nine hundred sixty-five million, six hundred forty-three thousand, nine hundred seventy-three".