126725655577711 has 2 divisors, whose sum is σ = 126725655577712. Its totient is φ = 126725655577710.

The previous prime is 126725655577691. The next prime is 126725655577753. The reversal of 126725655577711 is 117775556527621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126725655577711 - 2²⁹ = 126725118706799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126725655577811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63362827788855 + 63362827788856.

It is an arithmetic number, because the mean of its divisors is an integer number (63362827788856).

Almost surely, 2^{126725655577711} is an apocalyptic number.

126725655577711 is a deficient number, since it is larger than the sum of its proper divisors (1).

126725655577711 is an equidigital number, since it uses as much as digits as its factorization.

126725655577711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216090000, while the sum is 67.

The spelling of 126725655577711 in words is "one hundred twenty-six trillion, seven hundred twenty-five billion, six hundred fifty-five million, five hundred seventy-seven thousand, seven hundred eleven".