126578918747 has 2 divisors, whose sum is σ = 126578918748. Its totient is φ = 126578918746.

The previous prime is 126578918651. The next prime is 126578918761. The reversal of 126578918747 is 747819875621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126578918747 - 2⁸ = 126578918491 is a prime.

It is not a weakly prime, because it can be changed into another prime (126578918797) 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, 63289459373 + 63289459374.

It is an arithmetic number, because the mean of its divisors is an integer number (63289459374).

Almost surely, 2^126578918747 is an apocalyptic number.

126578918747 is a deficient number, since it is larger than the sum of its proper divisors (1).

126578918747 is an equidigital number, since it uses as much as digits as its factorization.

126578918747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47416320, while the sum is 65.

The spelling of 126578918747 in words is "one hundred twenty-six billion, five hundred seventy-eight million, nine hundred eighteen thousand, seven hundred forty-seven".