14121830857 has 2 divisors, whose sum is σ = 14121830858. Its totient is φ = 14121830856.

The previous prime is 14121830851. The next prime is 14121830869. The reversal of 14121830857 is 75803812141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14013587641 + 108243216 = 118379^2 + 10404^2 .

It is a cyclic number.

It is not a de Polignac number, because 14121830857 - 2²³ = 14113442249 is a prime.

It is a super-2 number, since 2×14121830857² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14121830851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7060915428 + 7060915429.

It is an arithmetic number, because the mean of its divisors is an integer number (7060915429).

Almost surely, 2^14121830857 is an apocalyptic number.

It is an amenable number.

14121830857 is a deficient number, since it is larger than the sum of its proper divisors (1).

14121830857 is an equidigital number, since it uses as much as digits as its factorization.

14121830857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 14121830857 in words is "fourteen billion, one hundred twenty-one million, eight hundred thirty thousand, eight hundred fifty-seven".