4138424521 has 8 divisors (see below), whose sum is σ = 5159594304. Its totient is φ = 3224746320.

The previous prime is 4138424513. The next prime is 4138424579. The reversal of 4138424521 is 1254248314.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4138424521 - 2³ = 4138424513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4138424501) 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, 26872810 + ... + 26872963.

It is an arithmetic number, because the mean of its divisors is an integer number (644949288).

Almost surely, 2^4138424521 is an apocalyptic number.

It is an amenable number.

4138424521 is a deficient number, since it is larger than the sum of its proper divisors (1021169783).

4138424521 is a wasteful number, since it uses less digits than its factorization.

4138424521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53745791.

The product of its digits is 30720, while the sum is 34.

The square root of 4138424521 is about 64330.5877557480. The cubic root of 4138424521 is about 1605.5050633719.

The spelling of 4138424521 in words is "four billion, one hundred thirty-eight million, four hundred twenty-four thousand, five hundred twenty-one".