828226440077 has 4 divisors (see below), whose sum is σ = 828860126496. Its totient is φ = 827592753660.

The previous prime is 828226440071. The next prime is 828226440127. The reversal of 828226440077 is 770044622828.

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 a de Polignac number, because none of the positive numbers 2^k-828226440077 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 (828226440071) by changing a digit.

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, 316841249 + ... + 316843862.

It is an arithmetic number, because the mean of its divisors is an integer number (207215031624).

Almost surely, 2^828226440077 is an apocalyptic number.

It is an amenable number.

828226440077 is a deficient number, since it is larger than the sum of its proper divisors (633686419).

828226440077 is a wasteful number, since it uses less digits than its factorization.

828226440077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633686418.

The product of its (nonzero) digits is 2408448, while the sum is 50.

The spelling of 828226440077 in words is "eight hundred twenty-eight billion, two hundred twenty-six million, four hundred forty thousand, seventy-seven".