3888771665 has 8 divisors (see below), whose sum is σ = 4667232960. Its totient is φ = 3110546032.

The previous prime is 3888771659. The next prime is 3888771671. The reversal of 3888771665 is 5661778883.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3888771659) and next prime (3888771671).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3888771665 - 2¹⁴ = 3888755281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20309 + ... + 90498.

It is an arithmetic number, because the mean of its divisors is an integer number (583404120).

Almost surely, 2^3888771665 is an apocalyptic number.

It is an amenable number.

3888771665 is a deficient number, since it is larger than the sum of its proper divisors (778461295).

3888771665 is a wasteful number, since it uses less digits than its factorization.

3888771665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117831.

The product of its digits is 13547520, while the sum is 59.

The square root of 3888771665 is about 62360.0165570857. The cubic root of 3888771665 is about 1572.5488591915.

The spelling of 3888771665 in words is "three billion, eight hundred eighty-eight million, seven hundred seventy-one thousand, six hundred sixty-five".