4127217656939 has 16 divisors (see below), whose sum is σ = 4624910462592. Its totient is φ = 3658328588928.

The previous prime is 4127217656929. The next prime is 4127217656941. The reversal of 4127217656939 is 9396567127214.

It is a happy number.

It is not a de Polignac number, because 4127217656939 - 2²⁰ = 4127216608363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4127217656909) 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, 63692684 + ... + 63757449.

It is an arithmetic number, because the mean of its divisors is an integer number (289056903912).

Almost surely, 2^{4127217656939} is an apocalyptic number.

4127217656939 is a deficient number, since it is larger than the sum of its proper divisors (497692805653).

4127217656939 is a wasteful number, since it uses less digits than its factorization.

4127217656939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127450246.

The product of its digits is 34292160, while the sum is 62.

The spelling of 4127217656939 in words is "four trillion, one hundred twenty-seven billion, two hundred seventeen million, six hundred fifty-six thousand, nine hundred thirty-nine".