129126485843 has 2 divisors, whose sum is σ = 129126485844. Its totient is φ = 129126485842.

The previous prime is 129126485797. The next prime is 129126485893. The reversal of 129126485843 is 348584621921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129126485843 - 2²⁴ = 129109708627 is a prime.

It is not a weakly prime, because it can be changed into another prime (129126485893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64563242921 + 64563242922.

It is an arithmetic number, because the mean of its divisors is an integer number (64563242922).

Almost surely, 2^129126485843 is an apocalyptic number.

129126485843 is a deficient number, since it is larger than the sum of its proper divisors (1).

129126485843 is an equidigital number, since it uses as much as digits as its factorization.

129126485843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 53.

The spelling of 129126485843 in words is "one hundred twenty-nine billion, one hundred twenty-six million, four hundred eighty-five thousand, eight hundred forty-three".