828663338513 has 4 divisors (see below), whose sum is σ = 829520281920. Its totient is φ = 827806395108.

The previous prime is 828663338497. The next prime is 828663338521. The reversal of 828663338513 is 315833366828.

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 not a de Polignac number, because 828663338513 - 2⁴ = 828663338497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828663338563) 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, 428470253 + ... + 428472186.

It is an arithmetic number, because the mean of its divisors is an integer number (207380070480).

Almost surely, 2^828663338513 is an apocalyptic number.

It is an amenable number.

828663338513 is a deficient number, since it is larger than the sum of its proper divisors (856943407).

828663338513 is an equidigital number, since it uses as much as digits as its factorization.

828663338513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856943406.

The product of its digits is 14929920, while the sum is 56.

The spelling of 828663338513 in words is "eight hundred twenty-eight billion, six hundred sixty-three million, three hundred thirty-eight thousand, five hundred thirteen".