126618547243 has 2 divisors, whose sum is σ = 126618547244. Its totient is φ = 126618547242.

The previous prime is 126618547219. The next prime is 126618547247. The reversal of 126618547243 is 342745816621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126618547243 - 2²⁵ = 126584992811 is a prime.

It is not a weakly prime, because it can be changed into another prime (126618547247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63309273621 + 63309273622.

It is an arithmetic number, because the mean of its divisors is an integer number (63309273622).

Almost surely, 2^126618547243 is an apocalyptic number.

126618547243 is a deficient number, since it is larger than the sum of its proper divisors (1).

126618547243 is an equidigital number, since it uses as much as digits as its factorization.

126618547243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 49.

The spelling of 126618547243 in words is "one hundred twenty-six billion, six hundred eighteen million, five hundred forty-seven thousand, two hundred forty-three".