3505431542421 has 8 divisors (see below), whose sum is σ = 4674266956800. Its totient is φ = 2336775244832.

The previous prime is 3505431542413. The next prime is 3505431542441. The reversal of 3505431542421 is 1242451345053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3505431542421 - 2³ = 3505431542413 is a prime.

It is a super-2 number, since 2×3505431542421² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3505431542421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3505431542441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44733525 + ... + 44811818.

It is an arithmetic number, because the mean of its divisors is an integer number (584283369600).

Almost surely, 2^{3505431542421} is an apocalyptic number.

It is an amenable number.

3505431542421 is a deficient number, since it is larger than the sum of its proper divisors (1168835414379).

3505431542421 is a wasteful number, since it uses less digits than its factorization.

3505431542421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89558395.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 3505431542421 its reverse (1242451345053), we get a palindrome (4747882887474).

The spelling of 3505431542421 in words is "three trillion, five hundred five billion, four hundred thirty-one million, five hundred forty-two thousand, four hundred twenty-one".