3888884979905 has 16 divisors (see below), whose sum is σ = 4831239700224. Its totient is φ = 3003203030400.

The previous prime is 3888884979901. The next prime is 3888884979919. The reversal of 3888884979905 is 5099794888883.

3888884979905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3888884979905 - 2² = 3888884979901 is a prime.

It is a super-3 number, since 3×3888884979905³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3888884979901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113328371 + ... + 113362680.

It is an arithmetic number, because the mean of its divisors is an integer number (301952481264).

Almost surely, 2^{3888884979905} is an apocalyptic number.

It is an amenable number.

3888884979905 is a deficient number, since it is larger than the sum of its proper divisors (942354720319).

3888884979905 is a wasteful number, since it uses less digits than its factorization.

3888884979905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226691176.

The product of its (nonzero) digits is 10032906240, while the sum is 86.

The spelling of 3888884979905 in words is "three trillion, eight hundred eighty-eight billion, eight hundred eighty-four million, nine hundred seventy-nine thousand, nine hundred five".