127542206771 has 12 divisors (see below), whose sum is σ = 151984095480. Its totient is φ = 106655502240.

The previous prime is 127542206749. The next prime is 127542206773. The reversal of 127542206771 is 177602245721.

It is not a de Polignac number, because 127542206771 - 2⁶ = 127542206707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127542206773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31740701 + ... + 31744718.

It is an arithmetic number, because the mean of its divisors is an integer number (12665341290).

Almost surely, 2^127542206771 is an apocalyptic number.

127542206771 is a deficient number, since it is larger than the sum of its proper divisors (24441888709).

127542206771 is an equidigital number, since it uses as much as digits as its factorization.

127542206771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63485474 (or 63485467 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 127542206771 in words is "one hundred twenty-seven billion, five hundred forty-two million, two hundred six thousand, seven hundred seventy-one".