3875565881 has 16 divisors (see below), whose sum is σ = 4261525440. Its totient is φ = 3495286080.

The previous prime is 3875565847. The next prime is 3875565899. The reversal of 3875565881 is 1885655783.

It is a happy number.

It is not a de Polignac number, because 3875565881 - 2⁶ = 3875565817 is a prime.

It is a super-2 number, since 2×3875565881² = 30040021795942612322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3875565821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430330 + ... + 1433036.

It is an arithmetic number, because the mean of its divisors is an integer number (266345340).

Almost surely, 2^3875565881 is an apocalyptic number.

It is an amenable number.

3875565881 is a deficient number, since it is larger than the sum of its proper divisors (385959559).

3875565881 is a wasteful number, since it uses less digits than its factorization.

3875565881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704.

The product of its digits is 8064000, while the sum is 56.

The square root of 3875565881 is about 62254.0430895858. The cubic root of 3875565881 is about 1570.7667804365.

The spelling of 3875565881 in words is "three billion, eight hundred seventy-five million, five hundred sixty-five thousand, eight hundred eighty-one".