3453145363521 has 48 divisors (see below), whose sum is σ = 5912735756928. Its totient is φ = 1972832630400.

The previous prime is 3453145363519. The next prime is 3453145363543. The reversal of 3453145363521 is 1253635413543.

3453145363521 is a `hidden beast` number, since 3 + 4 + 5 + 3 + 1 + 4 + 5 + 3 + 635 + 2 + 1 = 666.

It is not a de Polignac number, because 3453145363521 - 2¹ = 3453145363519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3453145363721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8443011 + ... + 8842551.

It is an arithmetic number, because the mean of its divisors is an integer number (123181994936).

Almost surely, 2^{3453145363521} is an apocalyptic number.

It is an amenable number.

3453145363521 is a deficient number, since it is larger than the sum of its proper divisors (2459590393407).

3453145363521 is an equidigital number, since it uses as much as digits as its factorization.

3453145363521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404644 (or 404632 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

The spelling of 3453145363521 in words is "three trillion, four hundred fifty-three billion, one hundred forty-five million, three hundred sixty-three thousand, five hundred twenty-one".