4155847642 has 16 divisors (see below), whose sum is σ = 6623802432. Its totient is φ = 1948777920.

The previous prime is 4155847571. The next prime is 4155847643. The reversal of 4155847642 is 2467485514.

It is a junction number, because it is equal to n+sod(n) for n = 4155847592 and 4155847601.

It is not an unprimeable number, because it can be changed into a prime (4155847643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206334 + ... + 225577.

It is an arithmetic number, because the mean of its divisors is an integer number (413987652).

Almost surely, 2^4155847642 is an apocalyptic number.

4155847642 is a deficient number, since it is larger than the sum of its proper divisors (2467954790).

4155847642 is a wasteful number, since it uses less digits than its factorization.

4155847642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432213.

The product of its digits is 1075200, while the sum is 46.

The square root of 4155847642 is about 64465.8641608099. The cubic root of 4155847642 is about 1607.7550133461.

The spelling of 4155847642 in words is "four billion, one hundred fifty-five million, eight hundred forty-seven thousand, six hundred forty-two".