3888865386772 has 12 divisors (see below), whose sum is σ = 6805550868480. Its totient is φ = 1944422281496.

The previous prime is 3888865386727. The next prime is 3888865386773. The reversal of 3888865386772 is 2776835688883.

It is a junction number, because it is equal to n+sod(n) for n = 3888865386692 and 3888865386701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3888865386773) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1730068 + ... + 3281899.

It is an arithmetic number, because the mean of its divisors is an integer number (567129239040).

Almost surely, 2^{3888865386772} is an apocalyptic number.

It is an amenable number.

3888865386772 is a deficient number, since it is larger than the sum of its proper divisors (2916685481708).

3888865386772 is a wasteful number, since it uses less digits than its factorization.

3888865386772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205950 (or 5205948 counting only the distinct ones).

The product of its digits is 5202247680, while the sum is 79.

The spelling of 3888865386772 in words is "three trillion, eight hundred eighty-eight billion, eight hundred sixty-five million, three hundred eighty-six thousand, seven hundred seventy-two".