3885500188720 has 20 divisors (see below), whose sum is σ = 9033787938960. Its totient is φ = 1554200075456.

The previous prime is 3885500188673. The next prime is 3885500188729. The reversal of 3885500188720 is 278810055883.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3885500188720² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3885500188729) 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 3 ways as a sum of consecutive naturals, for example, 24284376100 + ... + 24284376259.

It is an arithmetic number, because the mean of its divisors is an integer number (451689396948).

Almost surely, 2^{3885500188720} is an apocalyptic number.

It is an amenable number.

3885500188720 is an abundant number, since it is smaller than the sum of its proper divisors (5148287750240).

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

3885500188720 is a wasteful number, since it uses less digits than its factorization.

3885500188720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48568752372 (or 48568752366 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 55.

The spelling of 3885500188720 in words is "three trillion, eight hundred eighty-five billion, five hundred million, one hundred eighty-eight thousand, seven hundred twenty".