127768663407 has 36 divisors (see below), whose sum is σ = 217825236888. Its totient is φ = 66373322400.

The previous prime is 127768663361. The next prime is 127768663423. The reversal of 127768663407 is 704366867721.

It is not a de Polignac number, because 127768663407 - 2⁶ = 127768663343 is a prime.

It is a super-2 number, since 2×127768663407² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127768663307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3573844 + ... + 3609417.

Almost surely, 2^127768663407 is an apocalyptic number.

127768663407 is a deficient number, since it is larger than the sum of its proper divisors (90056573481).

127768663407 is a wasteful number, since it uses less digits than its factorization.

127768663407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7183300 (or 7183282 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 127768663407 in words is "one hundred twenty-seven billion, seven hundred sixty-eight million, six hundred sixty-three thousand, four hundred seven".