14121281887 has 2 divisors, whose sum is σ = 14121281888. Its totient is φ = 14121281886.

The previous prime is 14121281849. The next prime is 14121281957. The reversal of 14121281887 is 78818212141.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14121281887 is a prime.

It is a super-2 number, since 2×14121281887² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14121281807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7060640943 + 7060640944.

It is an arithmetic number, because the mean of its divisors is an integer number (7060640944).

Almost surely, 2^14121281887 is an apocalyptic number.

14121281887 is a deficient number, since it is larger than the sum of its proper divisors (1).

14121281887 is an equidigital number, since it uses as much as digits as its factorization.

14121281887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57344, while the sum is 43.

The spelling of 14121281887 in words is "fourteen billion, one hundred twenty-one million, two hundred eighty-one thousand, eight hundred eighty-seven".