80956467313 has 4 divisors (see below), whose sum is σ = 80966483620. Its totient is φ = 80946451008.

The previous prime is 80956467307. The next prime is 80956467323. The reversal of 80956467313 is 31376465908.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8620751104 + 72335716209 = 92848^2 + 268953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80956467313 is a prime.

It is the 284529-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80956467323) by changing a digit.

It is a nontrivial repunit in base 284528.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4996020 + ... + 5012197.

It is an arithmetic number, because the mean of its divisors is an integer number (20241620905).

Almost surely, 2^80956467313 is an apocalyptic number.

It is an amenable number.

80956467313 is a deficient number, since it is larger than the sum of its proper divisors (10016307).

80956467313 is a wasteful number, since it uses less digits than its factorization.

80956467313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016306.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 80956467313 in words is "eighty billion, nine hundred fifty-six million, four hundred sixty-seven thousand, three hundred thirteen".