263676671373 has 4 divisors (see below), whose sum is σ = 351568895168. Its totient is φ = 175784447580.

The previous prime is 263676671339. The next prime is 263676671383. The reversal of 263676671373 is 373176676362.

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 not a de Polignac number, because 263676671373 - 2¹⁷ = 263676540301 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 (263676671333) 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, 43946111893 + ... + 43946111898.

It is an arithmetic number, because the mean of its divisors is an integer number (87892223792).

Almost surely, 2^263676671373 is an apocalyptic number.

It is an amenable number.

263676671373 is a deficient number, since it is larger than the sum of its proper divisors (87892223795).

263676671373 is an equidigital number, since it uses as much as digits as its factorization.

263676671373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87892223794.

The product of its digits is 24004512, while the sum is 57.

The spelling of 263676671373 in words is "two hundred sixty-three billion, six hundred seventy-six million, six hundred seventy-one thousand, three hundred seventy-three".