3888771664 has 10 divisors (see below), whose sum is σ = 7534495130. Its totient is φ = 1944385824.

The previous prime is 3888771659. The next prime is 3888771671. The reversal of 3888771664 is 4661778883.

It can be written as a sum of positive squares in only one way, i.e., 3274128400 + 614643264 = 57220^2 + 24792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3888771599 and 3888771608.

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 as a sum of consecutive naturals, namely, 121524099 + ... + 121524130.

It is an arithmetic number, because the mean of its divisors is an integer number (753449513).

Almost surely, 2^3888771664 is an apocalyptic number.

It is an amenable number.

3888771664 is a deficient number, since it is larger than the sum of its proper divisors (3645723466).

3888771664 is a wasteful number, since it uses less digits than its factorization.

3888771664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243048237 (or 243048231 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The square root of 3888771664 is about 62360.0165490677. The cubic root of 3888771664 is about 1572.5488590567.

The spelling of 3888771664 in words is "three billion, eight hundred eighty-eight million, seven hundred seventy-one thousand, six hundred sixty-four".