3871206032605 has 16 divisors (see below), whose sum is σ = 4825843720704. Its totient is φ = 2977973144640.

The previous prime is 3871206032599. The next prime is 3871206032633. The reversal of 3871206032605 is 5062306021783.

It is not a de Polignac number, because 3871206032605 - 2¹¹ = 3871206030557 is a prime.

It is a super-3 number, since 3×3871206032605³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79515547 + ... + 79564216.

It is an arithmetic number, because the mean of its divisors is an integer number (301615232544).

Almost surely, 2^{3871206032605} is an apocalyptic number.

It is an amenable number.

3871206032605 is a deficient number, since it is larger than the sum of its proper divisors (954637688099).

3871206032605 is a wasteful number, since it uses less digits than its factorization.

3871206032605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159079956.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 3871206032605 in words is "three trillion, eight hundred seventy-one billion, two hundred six million, thirty-two thousand, six hundred five".