127681675138 has 16 divisors (see below), whose sum is σ = 191845584000. Its totient is φ = 63733201072.

The previous prime is 127681675127. The next prime is 127681675153. The reversal of 127681675138 is 831576186721.

It is a super-2 number, since 2×127681675138² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5725053 + ... + 5747311.

It is an arithmetic number, because the mean of its divisors is an integer number (11990349000).

Almost surely, 2^127681675138 is an apocalyptic number.

127681675138 is a deficient number, since it is larger than the sum of its proper divisors (64163908862).

127681675138 is a wasteful number, since it uses less digits than its factorization.

127681675138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969.

The product of its digits is 3386880, while the sum is 55.

The spelling of 127681675138 in words is "one hundred twenty-seven billion, six hundred eighty-one million, six hundred seventy-five thousand, one hundred thirty-eight".