3421553261 has 16 divisors (see below), whose sum is σ = 3971669760. Its totient is φ = 2886898560.

The previous prime is 3421553221. The next prime is 3421553287. The reversal of 3421553261 is 1623551243.

It is a happy number.

It is not a de Polignac number, because 3421553261 - 2¹⁰ = 3421552237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421553221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331385 + ... + 341553.

It is an arithmetic number, because the mean of its divisors is an integer number (248229360).

Almost surely, 2^3421553261 is an apocalyptic number.

It is an amenable number.

3421553261 is a deficient number, since it is larger than the sum of its proper divisors (550116499).

3421553261 is a wasteful number, since it uses less digits than its factorization.

3421553261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10924.

The product of its digits is 21600, while the sum is 32.

The square root of 3421553261 is about 58494.0446626834. The cubic root of 3421553261 is about 1506.8653098172.

The spelling of 3421553261 in words is "three billion, four hundred twenty-one million, five hundred fifty-three thousand, two hundred sixty-one".