3545145055421 has 8 divisors (see below), whose sum is σ = 3627624422400. Its totient is φ = 3462667240032.

The previous prime is 3545145055379. The next prime is 3545145055433. The reversal of 3545145055421 is 1245505415453.

It is a happy number.

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 3545145055421 - 2¹⁰ = 3545145054397 is a prime.

It is a super-2 number, since 2×3545145055421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545145054421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5141105 + ... + 5789753.

It is an arithmetic number, because the mean of its divisors is an integer number (453453052800).

Almost surely, 2^{3545145055421} is an apocalyptic number.

It is an amenable number.

3545145055421 is a deficient number, since it is larger than the sum of its proper divisors (82479366979).

3545145055421 is a wasteful number, since it uses less digits than its factorization.

3545145055421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775795.

The product of its (nonzero) digits is 1200000, while the sum is 44.

The spelling of 3545145055421 in words is "three trillion, five hundred forty-five billion, one hundred forty-five million, fifty-five thousand, four hundred twenty-one".