3861823424646 has 32 divisors (see below), whose sum is σ = 8461958813568. Its totient is φ = 1165226987840.

The previous prime is 3861823424639. The next prime is 3861823424663. The reversal of 3861823424646 is 6464243281683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125547876 + ... + 125578631.

It is an arithmetic number, because the mean of its divisors is an integer number (264436212924).

Almost surely, 2^{3861823424646} is an apocalyptic number.

3861823424646 is an abundant number, since it is smaller than the sum of its proper divisors (4600135388922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3861823424646 is a wasteful number, since it uses less digits than its factorization.

3861823424646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251126756.

The product of its digits is 31850496, while the sum is 57.

The spelling of 3861823424646 in words is "three trillion, eight hundred sixty-one billion, eight hundred twenty-three million, four hundred twenty-four thousand, six hundred forty-six".