495915674671873 has 4 divisors (see below), whose sum is σ = 499074373236820. Its totient is φ = 492756976106928.

The previous prime is 495915674671817. The next prime is 495915674671903. The reversal of 495915674671873 is 378176476519594.

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 342783266561649 + 153132408110224 = 18514407^2 + 12374668^2 .

It is a cyclic number.

It is not a de Polignac number, because 495915674671873 - 2²⁹ = 495915137800961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495915674611873) 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, 1579349282238 + ... + 1579349282551.

It is an arithmetic number, because the mean of its divisors is an integer number (124768593309205).

Almost surely, 2^{495915674671873} is an apocalyptic number.

It is an amenable number.

495915674671873 is a deficient number, since it is larger than the sum of its proper divisors (3158698564947).

495915674671873 is a wasteful number, since it uses less digits than its factorization.

495915674671873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158698564946.

The product of its digits is 9601804800, while the sum is 82.

The spelling of 495915674671873 in words is "four hundred ninety-five trillion, nine hundred fifteen billion, six hundred seventy-four million, six hundred seventy-one thousand, eight hundred seventy-three".