3888561672 has 36 divisors (see below), whose sum is σ = 10532954445. Its totient is φ = 1296010848.

The previous prime is 3888561671. The next prime is 3888561701. The reversal of 3888561672 is 2761658883.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

3888561672 is a `hidden beast` number, since 3 + 8 + 8 + 8 + 561 + 6 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3744705636 + 143856036 = 61194^2 + 11994^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=44094.

It is not an unprimeable number, because it can be changed into a prime (3888561671) 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 8 ways as a sum of consecutive naturals, for example, 525454 + ... + 532802.

Almost surely, 2^3888561672 is an apocalyptic number.

It is an amenable number.

3888561672 is an abundant number, since it is smaller than the sum of its proper divisors (6644392773).

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

3888561672 is an frugal number, since it uses more digits than its factorization.

3888561672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14710 (or 7354 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 3888561672 is about 62358.3328192793. The cubic root of 3888561672 is about 1572.5205528928.

The spelling of 3888561672 in words is "three billion, eight hundred eighty-eight million, five hundred sixty-one thousand, six hundred seventy-two".