12842328977 has 8 divisors (see below), whose sum is σ = 12958500840. Its totient is φ = 12726201600.

The previous prime is 12842328973. The next prime is 12842328979. The reversal of 12842328977 is 77982324821.

It is a Cunningham number, because it is equal to 113324²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 226321936 + 12616007041 = 15044^2 + 112321^2 .

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 12842328977 - 2² = 12842328973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12842328973) 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, 908399 + ... + 922427.

It is an arithmetic number, because the mean of its divisors is an integer number (1619812605).

Almost surely, 2^12842328977 is an apocalyptic number.

It is an amenable number.

12842328977 is a deficient number, since it is larger than the sum of its proper divisors (116171863).

12842328977 is a wasteful number, since it uses less digits than its factorization.

12842328977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22243.

The product of its digits is 2709504, while the sum is 53.

The spelling of 12842328977 in words is "twelve billion, eight hundred forty-two million, three hundred twenty-eight thousand, nine hundred seventy-seven".