127768663408 has 40 divisors (see below), whose sum is σ = 248819739696. Its totient is φ = 63557836800.

The previous prime is 127768663361. The next prime is 127768663423. The reversal of 127768663408 is 804366867721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2880438 + ... + 2924458.

Almost surely, 2^127768663408 is an apocalyptic number.

It is an amenable number.

127768663408 is a deficient number, since it is larger than the sum of its proper divisors (121051076288).

127768663408 is a wasteful number, since it uses less digits than its factorization.

127768663408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44953 (or 44947 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 127768663408 in words is "one hundred twenty-seven billion, seven hundred sixty-eight million, six hundred sixty-three thousand, four hundred eight".