4238215991109 has 24 divisors (see below), whose sum is σ = 6399843695232. Its totient is φ = 2697634795680.

The previous prime is 4238215991099. The next prime is 4238215991117. The reversal of 4238215991109 is 9011995128324.

It is a happy number.

4238215991109 is a `hidden beast` number, since 4 + 2 + 38 + 2 + 1 + 599 + 1 + 10 + 9 = 666.

It is not a de Polignac number, because 4238215991109 - 2²¹ = 4238213893957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4238215991209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18810817 + ... + 19034790.

It is an arithmetic number, because the mean of its divisors is an integer number (266660153968).

Almost surely, 2^{4238215991109} is an apocalyptic number.

It is an amenable number.

4238215991109 is a deficient number, since it is larger than the sum of its proper divisors (2161627704123).

4238215991109 is a wasteful number, since it uses less digits than its factorization.

4238215991109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37846177 (or 37846174 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 4238215991109 in words is "four trillion, two hundred thirty-eight billion, two hundred fifteen million, nine hundred ninety-one thousand, one hundred nine".