126686407667 has 2 divisors, whose sum is σ = 126686407668. Its totient is φ = 126686407666.

The previous prime is 126686407657. The next prime is 126686407697. The reversal of 126686407667 is 766704686621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126686407667 - 2⁴ = 126686407651 is a prime.

It is not a weakly prime, because it can be changed into another prime (126686407657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63343203833 + 63343203834.

It is an arithmetic number, because the mean of its divisors is an integer number (63343203834).

Almost surely, 2^126686407667 is an apocalyptic number.

126686407667 is a deficient number, since it is larger than the sum of its proper divisors (1).

126686407667 is an equidigital number, since it uses as much as digits as its factorization.

126686407667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24385536, while the sum is 59.

The spelling of 126686407667 in words is "one hundred twenty-six billion, six hundred eighty-six million, four hundred seven thousand, six hundred sixty-seven".