127972446243 has 12 divisors (see below), whose sum is σ = 174690356040. Its totient is φ = 83330891616.

The previous prime is 127972446229. The next prime is 127972446263. The reversal of 127972446243 is 342644279721.

It is not a de Polignac number, because 127972446243 - 2⁴ = 127972446227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127972446263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11529738 + ... + 11540831.

It is an arithmetic number, because the mean of its divisors is an integer number (14557529670).

Almost surely, 2^127972446243 is an apocalyptic number.

127972446243 is a deficient number, since it is larger than the sum of its proper divisors (46717909797).

127972446243 is an equidigital number, since it uses as much as digits as its factorization.

127972446243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23070658 (or 23070615 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 51.

The spelling of 127972446243 in words is "one hundred twenty-seven billion, nine hundred seventy-two million, four hundred forty-six thousand, two hundred forty-three".