126713172772 has 12 divisors (see below), whose sum is σ = 221769242716. Its totient is φ = 63350532000.

The previous prime is 126713172767. The next prime is 126713172787. The reversal of 126713172772 is 277271317621.

It can be written as a sum of positive squares in 2 ways, for example, as 39106644516 + 87606528256 = 197754^2 + 295984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466343 + ... + 1550350.

Almost surely, 2^126713172772 is an apocalyptic number.

It is an amenable number.

126713172772 is a deficient number, since it is larger than the sum of its proper divisors (95056069944).

126713172772 is a wasteful number, since it uses less digits than its factorization.

126713172772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027198 (or 3027196 counting only the distinct ones).

The product of its digits is 345744, while the sum is 46.

The spelling of 126713172772 in words is "one hundred twenty-six billion, seven hundred thirteen million, one hundred seventy-two thousand, seven hundred seventy-two".