828454257073 has 4 divisors (see below), whose sum is σ = 828817457188. Its totient is φ = 828091056960.

The previous prime is 828454257011. The next prime is 828454257079. The reversal of 828454257073 is 370752454828.

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 495182430864 + 333271826209 = 703692^2 + 577297^2 .

It is a cyclic number.

It is not a de Polignac number, because 828454257073 - 2⁹ = 828454256561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828454257079) 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, 181596636 + ... + 181601197.

It is an arithmetic number, because the mean of its divisors is an integer number (207204364297).

Almost surely, 2^828454257073 is an apocalyptic number.

It is an amenable number.

828454257073 is a deficient number, since it is larger than the sum of its proper divisors (363200115).

828454257073 is a wasteful number, since it uses less digits than its factorization.

828454257073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363200114.

The product of its (nonzero) digits is 15052800, while the sum is 55.

The spelling of 828454257073 in words is "eight hundred twenty-eight billion, four hundred fifty-four million, two hundred fifty-seven thousand, seventy-three".