127768663427 has 8 divisors (see below), whose sum is σ = 135287900352. Its totient is φ = 120249808000.

The previous prime is 127768663423. The next prime is 127768663471. The reversal of 127768663427 is 724366867721.

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

It is a cyclic number.

It is not a de Polignac number, because 127768663427 - 2² = 127768663423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127768663423) 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, 878177 + ... + 1013277.

It is an arithmetic number, because the mean of its divisors is an integer number (16910987544).

Almost surely, 2^127768663427 is an apocalyptic number.

127768663427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

127768663427 is a deficient number, since it is larger than the sum of its proper divisors (7519236925).

127768663427 is a wasteful number, since it uses less digits than its factorization.

127768663427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190749.

The product of its digits is 28449792, while the sum is 59.

The spelling of 127768663427 in words is "one hundred twenty-seven billion, seven hundred sixty-eight million, six hundred sixty-three thousand, four hundred twenty-seven".