3861870252242 has 8 divisors (see below), whose sum is σ = 5792837062896. Its totient is φ = 1930924564612.

The previous prime is 3861870252209. The next prime is 3861870252259. The reversal of 3861870252242 is 2422520781683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4815488 + ... + 5559915.

It is an arithmetic number, because the mean of its divisors is an integer number (724104632862).

Almost surely, 2^{3861870252242} is an apocalyptic number.

3861870252242 is a deficient number, since it is larger than the sum of its proper divisors (1930966810654).

3861870252242 is a wasteful number, since it uses less digits than its factorization.

3861870252242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561512.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 3861870252242 in words is "three trillion, eight hundred sixty-one billion, eight hundred seventy million, two hundred fifty-two thousand, two hundred forty-two".