3998547535105 has 8 divisors (see below), whose sum is σ = 4801979514600. Its totient is φ = 3196356379776.

The previous prime is 3998547535091. The next prime is 3998547535109. The reversal of 3998547535105 is 5015357458993.

It can be written as a sum of positive squares in 4 ways, for example, as 712626365584 + 3285921169521 = 844172^2 + 1812711^2 .

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 3998547535105 - 2¹³ = 3998547526913 is a prime.

It is a super-2 number, since 2×3998547535105² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3998547535109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310198950 + ... + 310211839.

It is an arithmetic number, because the mean of its divisors is an integer number (600247439325).

Almost surely, 2^{3998547535105} is an apocalyptic number.

It is an amenable number.

3998547535105 is a deficient number, since it is larger than the sum of its proper divisors (803431979495).

3998547535105 is a wasteful number, since it uses less digits than its factorization.

3998547535105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620412083.

The product of its (nonzero) digits is 102060000, while the sum is 64.

The spelling of 3998547535105 in words is "three trillion, nine hundred ninety-eight billion, five hundred forty-seven million, five hundred thirty-five thousand, one hundred five".