4831211881 has 4 divisors (see below), whose sum is σ = 4879045764. Its totient is φ = 4783378000.

The previous prime is 4831211867. The next prime is 4831211897. The reversal of 4831211881 is 1881121384.

4831211881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4435560000 + 395651881 = 66600^2 + 19891^2 .

It is a cyclic number.

It is not a de Polignac number, because 4831211881 - 2⁵ = 4831211849 is a prime.

It is a super-2 number, since 2×4831211881² = 46681216478231116322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4831211881.

It is not an unprimeable number, because it can be changed into a prime (4831211381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23916790 + ... + 23916991.

It is an arithmetic number, because the mean of its divisors is an integer number (1219761441).

Almost surely, 2^4831211881 is an apocalyptic number.

It is an amenable number.

4831211881 is a deficient number, since it is larger than the sum of its proper divisors (47833883).

4831211881 is a wasteful number, since it uses less digits than its factorization.

4831211881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47833882.

The product of its digits is 12288, while the sum is 37.

The square root of 4831211881 is about 69506.9196627214. The cubic root of 4831211881 is about 1690.5137008449.

The spelling of 4831211881 in words is "four billion, eight hundred thirty-one million, two hundred eleven thousand, eight hundred eighty-one".