3861863366253 has 16 divisors (see below), whose sum is σ = 5506023024576. Its totient is φ = 2399138566400.

The previous prime is 3861863366213. The next prime is 3861863366269. The reversal of 3861863366253 is 3526633681683.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3861863366253 - 2³⁰ = 3860789624429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861863366213) 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, 374860251 + ... + 374870552.

It is an arithmetic number, because the mean of its divisors is an integer number (344126439036).

Almost surely, 2^{3861863366253} is an apocalyptic number.

It is an amenable number.

3861863366253 is a deficient number, since it is larger than the sum of its proper divisors (1644159658323).

3861863366253 is a wasteful number, since it uses less digits than its factorization.

3861863366253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749730924.

The product of its digits is 67184640, while the sum is 60.

The spelling of 3861863366253 in words is "three trillion, eight hundred sixty-one billion, eight hundred sixty-three million, three hundred sixty-six thousand, two hundred fifty-three".