14127212857 has 4 divisors (see below), whose sum is σ = 14958225396. Its totient is φ = 13296200320.

The previous prime is 14127212791. The next prime is 14127212903. The reversal of 14127212857 is 75821272141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75821272141 = 76289 ⋅993869.

It can be written as a sum of positive squares in 2 ways, for example, as 12954081856 + 1173131001 = 113816^2 + 34251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14127212857 is a prime.

It is a super-2 number, since 2×14127212857² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14127215857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415506244 + ... + 415506277.

It is an arithmetic number, because the mean of its divisors is an integer number (3739556349).

Almost surely, 2^14127212857 is an apocalyptic number.

14127212857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

14127212857 is a deficient number, since it is larger than the sum of its proper divisors (831012539).

14127212857 is an equidigital number, since it uses as much as digits as its factorization.

14127212857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831012538.

The product of its digits is 62720, while the sum is 40.

Adding to 14127212857 its reverse (75821272141), we get a palindrome (89948484998).

The spelling of 14127212857 in words is "fourteen billion, one hundred twenty-seven million, two hundred twelve thousand, eight hundred fifty-seven".