3531536421 has 16 divisors (see below), whose sum is σ = 5383233024. Its totient is φ = 2017329264.

The previous prime is 3531536413. The next prime is 3531536467. The reversal of 3531536421 is 1246351353.

It is not a de Polignac number, because 3531536421 - 2³ = 3531536413 is a prime.

It is a super-3 number, since 3×3531536421³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531536401) 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, 37470 + ... + 92016.

It is an arithmetic number, because the mean of its divisors is an integer number (336452064).

Almost surely, 2^3531536421 is an apocalyptic number.

It is an amenable number.

3531536421 is a deficient number, since it is larger than the sum of its proper divisors (1851696603).

3531536421 is a wasteful number, since it uses less digits than its factorization.

3531536421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57640.

The product of its digits is 32400, while the sum is 33.

The square root of 3531536421 is about 59426.7315355640. The cubic root of 3531536421 is about 1522.8410077371.

Adding to 3531536421 its reverse (1246351353), we get a palindrome (4777887774).

The spelling of 3531536421 in words is "three billion, five hundred thirty-one million, five hundred thirty-six thousand, four hundred twenty-one".