43520638117 has 8 divisors (see below), whose sum is σ = 47479960512. Its totient is φ = 39561799200.

The previous prime is 43520638103. The next prime is 43520638123. The reversal of 43520638117 is 71183602534.

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

It is not a de Polignac number, because 43520638117 - 2²³ = 43512249509 is a prime.

It is a super-2 number, since 2×43520638117² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43520638117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43520638717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82192 + ... + 306262.

It is an arithmetic number, because the mean of its divisors is an integer number (5934995064).

Almost surely, 2^43520638117 is an apocalyptic number.

It is an amenable number.

43520638117 is a deficient number, since it is larger than the sum of its proper divisors (3959322395).

43520638117 is a wasteful number, since it uses less digits than its factorization.

43520638117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241739.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 43520638117 in words is "forty-three billion, five hundred twenty million, six hundred thirty-eight thousand, one hundred seventeen".