4138531659 has 48 divisors (see below), whose sum is σ = 6288920352. Its totient is φ = 2619661824.

The previous prime is 4138531637. The next prime is 4138531667. The reversal of 4138531659 is 9561358314.

It is not a de Polignac number, because 4138531659 - 2¹⁹ = 4138007371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4138531679) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4005807 + ... + 4006839.

It is an arithmetic number, because the mean of its divisors is an integer number (131019174).

Almost surely, 2^4138531659 is an apocalyptic number.

4138531659 is a deficient number, since it is larger than the sum of its proper divisors (2150388693).

4138531659 is a wasteful number, since it uses less digits than its factorization.

4138531659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1353 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 4138531659 is about 64331.4204646532. The cubic root of 4138531659 is about 1605.5189180096.

The spelling of 4138531659 in words is "four billion, one hundred thirty-eight million, five hundred thirty-one thousand, six hundred fifty-nine".