126725655577744 has 40 divisors (see below), whose sum is σ = 255936455089920. Its totient is φ = 60710895772800.

The previous prime is 126725655577711. The next prime is 126725655577753. The reversal of 126725655577744 is 447775556527621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042365312 + ... + 1042486879.

It is an arithmetic number, because the mean of its divisors is an integer number (6398411377248).

Almost surely, 2^{126725655577744} is an apocalyptic number.

It is an amenable number.

126725655577744 is an abundant number, since it is smaller than the sum of its proper divisors (129210799512176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126725655577744 is a wasteful number, since it uses less digits than its factorization.

126725655577744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084852359 (or 2084852353 counting only the distinct ones).

The product of its digits is 3457440000, while the sum is 73.

The spelling of 126725655577744 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-four".