4127665138 has 16 divisors (see below), whose sum is σ = 6231292416. Its totient is φ = 2050594560.

The previous prime is 4127665121. The next prime is 4127665141. The reversal of 4127665138 is 8315667214.

It is a junction number, because it is equal to n+sod(n) for n = 4127665094 and 4127665103.

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, 326923 + ... + 339313.

It is an arithmetic number, because the mean of its divisors is an integer number (389455776).

Almost surely, 2^4127665138 is an apocalyptic number.

4127665138 is a deficient number, since it is larger than the sum of its proper divisors (2103627278).

4127665138 is a wasteful number, since it uses less digits than its factorization.

4127665138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449.

The product of its digits is 241920, while the sum is 43.

The square root of 4127665138 is about 64246.9076142969. The cubic root of 4127665138 is about 1604.1124854521.

The spelling of 4127665138 in words is "four billion, one hundred twenty-seven million, six hundred sixty-five thousand, one hundred thirty-eight".