3965884881 has 16 divisors (see below), whose sum is σ = 6053228544. Its totient is φ = 2262479184.

The previous prime is 3965884829. The next prime is 3965884891. The reversal of 3965884881 is 1884885693.

3965884881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3965884881 - 2⁶ = 3965884817 is a prime.

It is a super-2 number, since 2×3965884881² = 31456485778688768322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3965884891) 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, 142815 + ... + 168308.

It is an arithmetic number, because the mean of its divisors is an integer number (378326784).

Almost surely, 2^3965884881 is an apocalyptic number.

It is an amenable number.

3965884881 is a deficient number, since it is larger than the sum of its proper divisors (2087343663).

3965884881 is a wasteful number, since it uses less digits than its factorization.

3965884881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311740.

The product of its digits is 13271040, while the sum is 60.

The square root of 3965884881 is about 62975.2719803575. The cubic root of 3965884881 is about 1582.8752964384.

The spelling of 3965884881 in words is "three billion, nine hundred sixty-five million, eight hundred eighty-four thousand, eight hundred eighty-one".