3481771564821 has 16 divisors (see below), whose sum is σ = 5064816107520. Its totient is φ = 2109989124720.

The previous prime is 3481771564811. The next prime is 3481771564823. The reversal of 3481771564821 is 1284651771843.

It is not a de Polignac number, because 3481771564821 - 2⁷ = 3481771564693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481771564823) 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, 3983061 + ... + 4777898.

It is an arithmetic number, because the mean of its divisors is an integer number (316551006720).

Almost surely, 2^{3481771564821} is an apocalyptic number.

It is an amenable number.

3481771564821 is a deficient number, since it is larger than the sum of its proper divisors (1583044542699).

3481771564821 is a wasteful number, since it uses less digits than its factorization.

3481771564821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8773016.

The product of its digits is 9031680, while the sum is 57.

The spelling of 3481771564821 in words is "three trillion, four hundred eighty-one billion, seven hundred seventy-one million, five hundred sixty-four thousand, eight hundred twenty-one".