127663779139 has 32 divisors (see below), whose sum is σ = 152281793664. Its totient is φ = 105823027200.

The previous prime is 127663779053. The next prime is 127663779157. The reversal of 127663779139 is 931977366721.

It is a cyclic number.

It is not a de Polignac number, because 127663779139 - 2¹¹ = 127663777091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127663779169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2006967 + ... + 2069599.

It is an arithmetic number, because the mean of its divisors is an integer number (4758806052).

Almost surely, 2^127663779139 is an apocalyptic number.

127663779139 is a deficient number, since it is larger than the sum of its proper divisors (24618014525).

127663779139 is a wasteful number, since it uses less digits than its factorization.

127663779139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63087.

The product of its digits is 18003384, while the sum is 61.

The spelling of 127663779139 in words is "one hundred twenty-seven billion, six hundred sixty-three million, seven hundred seventy-nine thousand, one hundred thirty-nine".