12828377977 has 8 divisors (see below), whose sum is σ = 12987141440. Its totient is φ = 12670272720.

The previous prime is 12828377957. The next prime is 12828378037. The reversal of 12828377977 is 77977382821.

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

It is a cyclic number.

It is not a de Polignac number, because 12828377977 - 2²⁷ = 12694160249 is a prime.

It is a super-3 number, since 3×12828377977³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12828377927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125274 + ... + 203347.

It is an arithmetic number, because the mean of its divisors is an integer number (1623392680).

Almost surely, 2^12828377977 is an apocalyptic number.

It is an amenable number.

12828377977 is a deficient number, since it is larger than the sum of its proper divisors (158763463).

12828377977 is a wasteful number, since it uses less digits than its factorization.

12828377977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329103.

The product of its digits is 16595712, while the sum is 61.

The spelling of 12828377977 in words is "twelve billion, eight hundred twenty-eight million, three hundred seventy-seven thousand, nine hundred seventy-seven".