127446421867 has 4 divisors (see below), whose sum is σ = 129348607336. Its totient is φ = 125544236400.

The previous prime is 127446421841. The next prime is 127446421873. The reversal of 127446421867 is 768124644721.

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 127446421867 - 2¹¹ = 127446419819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127443421867) 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, 951092634 + ... + 951092767.

It is an arithmetic number, because the mean of its divisors is an integer number (32337151834).

Almost surely, 2^127446421867 is an apocalyptic number.

127446421867 is a deficient number, since it is larger than the sum of its proper divisors (1902185469).

127446421867 is an equidigital number, since it uses as much as digits as its factorization.

127446421867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902185468.

The product of its digits is 3612672, while the sum is 52.

The spelling of 127446421867 in words is "one hundred twenty-seven billion, four hundred forty-six million, four hundred twenty-one thousand, eight hundred sixty-seven".