12828717777 has 8 divisors (see below), whose sum is σ = 17105539360. Its totient is φ = 8552187360.

The previous prime is 12828717767. The next prime is 12828717779. The reversal of 12828717777 is 77771782821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12828717777 - 2⁴ = 12828717761 is a prime.

It is a super-3 number, since 3×12828717777³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12828717779) 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 7 ways as a sum of consecutive naturals, for example, 70077 + ... + 174837.

It is an arithmetic number, because the mean of its divisors is an integer number (2138192420).

Almost surely, 2^12828717777 is an apocalyptic number.

It is an amenable number.

12828717777 is a deficient number, since it is larger than the sum of its proper divisors (4276821583).

12828717777 is a wasteful number, since it uses less digits than its factorization.

12828717777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145583.

The product of its digits is 4302592, while the sum is 57.

The spelling of 12828717777 in words is "twelve billion, eight hundred twenty-eight million, seven hundred seventeen thousand, seven hundred seventy-seven".