8343959356487 has 2 divisors, whose sum is σ = 8343959356488. Its totient is φ = 8343959356486.

The previous prime is 8343959356429. The next prime is 8343959356493. The reversal of 8343959356487 is 7846539593438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8343959356487 - 2²⁰ = 8343958307911 is a prime.

It is a super-2 number, since 2×8343959356487² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8343959356417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4171979678243 + 4171979678244.

It is an arithmetic number, because the mean of its divisors is an integer number (4171979678244).

Almost surely, 2^{8343959356487} is an apocalyptic number.

8343959356487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8343959356487 is an equidigital number, since it uses as much as digits as its factorization.

8343959356487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2351462400, while the sum is 74.

The spelling of 8343959356487 in words is "eight trillion, three hundred forty-three billion, nine hundred fifty-nine million, three hundred fifty-six thousand, four hundred eighty-seven".