127668577407 has 16 divisors (see below), whose sum is σ = 194613968640. Its totient is φ = 72926707392.

The previous prime is 127668577357. The next prime is 127668577453. The reversal of 127668577407 is 704775866721.

It is not a de Polignac number, because 127668577407 - 2⁶ = 127668577343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127668577607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056553 + ... + 1171170.

It is an arithmetic number, because the mean of its divisors is an integer number (12163373040).

Almost surely, 2^127668577407 is an apocalyptic number.

127668577407 is a deficient number, since it is larger than the sum of its proper divisors (66945391233).

127668577407 is a wasteful number, since it uses less digits than its factorization.

127668577407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230462.

The product of its (nonzero) digits is 27659520, while the sum is 60.

The spelling of 127668577407 in words is "one hundred twenty-seven billion, six hundred sixty-eight million, five hundred seventy-seven thousand, four hundred seven".