126725655577743 has 24 divisors (see below), whose sum is σ = 194088723394800. Its totient is φ = 79453042591104.

The previous prime is 126725655577711. The next prime is 126725655577753. The reversal of 126725655577743 is 347775556527621.

126725655577743 is a `hidden beast` number, since 1 + 2 + 6 + 7 + 2 + 5 + 6 + 5 + 5 + 577 + 7 + 43 = 666.

It is not a de Polignac number, because 126725655577743 - 2⁵ = 126725655577711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126725655577753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2704668928 + ... + 2704715781.

It is an arithmetic number, because the mean of its divisors is an integer number (8087030141450).

Almost surely, 2^{126725655577743} is an apocalyptic number.

126725655577743 is a deficient number, since it is larger than the sum of its proper divisors (67363067817057).

126725655577743 is a wasteful number, since it uses less digits than its factorization.

126725655577743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409384871 (or 5409384868 counting only the distinct ones).

The product of its digits is 2593080000, while the sum is 72.

The spelling of 126725655577743 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 forty-three".