3870885066890 has 16 divisors (see below), whose sum is σ = 7207854952680. Its totient is φ = 1494962508480.

The previous prime is 3870885066889. The next prime is 3870885066899. The reversal of 3870885066890 is 986605880783.

It can be written as a sum of positive squares in 4 ways, for example, as 1984737163249 + 1886147903641 = 1408807^2 + 1373371^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3870885066890.

It is not an unprimeable number, because it can be changed into a prime (3870885066899) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6673939481 + ... + 6673940060.

Almost surely, 2^{3870885066890} is an apocalyptic number.

3870885066890 is a deficient number, since it is larger than the sum of its proper divisors (3336969885790).

3870885066890 is a wasteful number, since it uses less digits than its factorization.

3870885066890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13347879577.

The product of its (nonzero) digits is 139345920, while the sum is 68.

The spelling of 3870885066890 in words is "three trillion, eight hundred seventy billion, eight hundred eighty-five million, sixty-six thousand, eight hundred ninety".