127256684711 has 4 divisors (see below), whose sum is σ = 137045660472. Its totient is φ = 117467708952.

The previous prime is 127256684677. The next prime is 127256684771. The reversal of 127256684711 is 117486652721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127256684711 - 2⁶ = 127256684647 is a prime.

It is a super-2 number, since 2×127256684711² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127256684711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127256684771) 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 3 ways as a sum of consecutive naturals, for example, 4894487861 + ... + 4894487886.

It is an arithmetic number, because the mean of its divisors is an integer number (34261415118).

Almost surely, 2^127256684711 is an apocalyptic number.

127256684711 is a deficient number, since it is larger than the sum of its proper divisors (9788975761).

127256684711 is an equidigital number, since it uses as much as digits as its factorization.

127256684711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9788975760.

The product of its digits is 1128960, while the sum is 50.

The spelling of 127256684711 in words is "one hundred twenty-seven billion, two hundred fifty-six million, six hundred eighty-four thousand, seven hundred eleven".