127216927481 has 8 divisors (see below), whose sum is σ = 147438532224. Its totient is φ = 107507262240.

The previous prime is 127216927477. The next prime is 127216927499. The reversal of 127216927481 is 184729612721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127216927481 - 2² = 127216927477 is a prime.

It is a super-2 number, since 2×127216927481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127216987481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127984340 + ... + 127985333.

It is an arithmetic number, because the mean of its divisors is an integer number (18429816528).

Almost surely, 2^127216927481 is an apocalyptic number.

It is an amenable number.

127216927481 is a deficient number, since it is larger than the sum of its proper divisors (20221604743).

127216927481 is an equidigital number, since it uses as much as digits as its factorization.

127216927481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255969751.

The product of its digits is 677376, while the sum is 50.

The spelling of 127216927481 in words is "one hundred twenty-seven billion, two hundred sixteen million, nine hundred twenty-seven thousand, four hundred eighty-one".