12775877857721 has 8 divisors (see below), whose sum is σ = 13950971969088. Its totient is φ = 11603058858000.

The previous prime is 12775877857709. The next prime is 12775877857783.

12775877857721 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12775877857721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12775877857021) 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, 568766165 + ... + 568788626.

It is an arithmetic number, because the mean of its divisors is an integer number (1743871496136).

Almost surely, 2^{12775877857721} is an apocalyptic number.

12775877857721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12775877857721 is a deficient number, since it is larger than the sum of its proper divisors (1175094111367).

12775877857721 is a wasteful number, since it uses less digits than its factorization.

12775877857721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137555823.

The product of its digits is 752953600, while the sum is 74.

The spelling of 12775877857721 in words is "twelve trillion, seven hundred seventy-five billion, eight hundred seventy-seven million, eight hundred fifty-seven thousand, seven hundred twenty-one".