3421081481 has 4 divisors (see below), whose sum is σ = 3421198464. Its totient is φ = 3420964500.

The previous prime is 3421081459. The next prime is 3421081487. The reversal of 3421081481 is 1841801243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1841801243 = 61 ⋅30193463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3421081481 is a prime.

It is a super-2 number, since 2×3421081481² = 23407596999282306722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3421081487) 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, 28736 + ... + 87566.

It is an arithmetic number, because the mean of its divisors is an integer number (855299616).

Almost surely, 2^3421081481 is an apocalyptic number.

It is an amenable number.

3421081481 is a deficient number, since it is larger than the sum of its proper divisors (116983).

3421081481 is an equidigital number, since it uses as much as digits as its factorization.

3421081481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116982.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 3421081481 is about 58490.0118054356. The cubic root of 3421081481 is about 1506.7960487206.

The spelling of 3421081481 in words is "three billion, four hundred twenty-one million, eighty-one thousand, four hundred eighty-one".