6437689862143 has 2 divisors, whose sum is σ = 6437689862144. Its totient is φ = 6437689862142.

The previous prime is 6437689862101. The next prime is 6437689862171. The reversal of 6437689862143 is 3412689867346.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6437689862143 is a prime.

It is a super-2 number, since 2×6437689862143² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6437689862743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3218844931071 + 3218844931072.

It is an arithmetic number, because the mean of its divisors is an integer number (3218844931072).

Almost surely, 2^{6437689862143} is an apocalyptic number.

6437689862143 is a deficient number, since it is larger than the sum of its proper divisors (1).

6437689862143 is an equidigital number, since it uses as much as digits as its factorization.

6437689862143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250822656, while the sum is 67.

The spelling of 6437689862143 in words is "six trillion, four hundred thirty-seven billion, six hundred eighty-nine million, eight hundred sixty-two thousand, one hundred forty-three".