126654257476997 has 2 divisors, whose sum is σ = 126654257476998. Its totient is φ = 126654257476996.

The previous prime is 126654257476937. The next prime is 126654257477107. The reversal of 126654257476997 is 799674752456621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65009163106276 + 61645094370721 = 8062826^2 + 7851439^2 .

It is a cyclic number.

It is not a de Polignac number, because 126654257476997 - 2²⁰ = 126654256428421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126654257476907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63327128738498 + 63327128738499.

It is an arithmetic number, because the mean of its divisors is an integer number (63327128738499).

Almost surely, 2^{126654257476997} is an apocalyptic number.

It is an amenable number.

126654257476997 is a deficient number, since it is larger than the sum of its proper divisors (1).

126654257476997 is an equidigital number, since it uses as much as digits as its factorization.

126654257476997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9601804800, while the sum is 80.

The spelling of 126654257476997 in words is "one hundred twenty-six trillion, six hundred fifty-four billion, two hundred fifty-seven million, four hundred seventy-six thousand, nine hundred ninety-seven".