3871210257213 has 64 divisors (see below), whose sum is σ = 5805657914112. Its totient is φ = 2278651668480.

The previous prime is 3871210257209. The next prime is 3871210257247. The reversal of 3871210257213 is 3127520121783.

It is not a de Polignac number, because 3871210257213 - 2² = 3871210257209 is a prime.

It is a super-2 number, since 2×3871210257213² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871210257283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175418806 + ... + 175440872.

It is an arithmetic number, because the mean of its divisors is an integer number (90713404908).

Almost surely, 2^{3871210257213} is an apocalyptic number.

It is an amenable number.

3871210257213 is a deficient number, since it is larger than the sum of its proper divisors (1934447656899).

3871210257213 is a wasteful number, since it uses less digits than its factorization.

3871210257213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24174.

The product of its (nonzero) digits is 141120, while the sum is 42.

Adding to 3871210257213 its reverse (3127520121783), we get a palindrome (6998730378996).

The spelling of 3871210257213 in words is "three trillion, eight hundred seventy-one billion, two hundred ten million, two hundred fifty-seven thousand, two hundred thirteen".