3450520633021 has 24 divisors (see below), whose sum is σ = 4398058182816. Its totient is φ = 2676872711520.

The previous prime is 3450520632961. The next prime is 3450520633181. The reversal of 3450520633021 is 1203360250543.

It is not a de Polignac number, because 3450520633021 - 2⁷ = 3450520632893 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 (3450520633421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13978326 + ... + 14223031.

It is an arithmetic number, because the mean of its divisors is an integer number (183252424284).

Almost surely, 2^{3450520633021} is an apocalyptic number.

It is an amenable number.

3450520633021 is a deficient number, since it is larger than the sum of its proper divisors (947537549795).

3450520633021 is a wasteful number, since it uses less digits than its factorization.

3450520633021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28201609 (or 28201602 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 3450520633021 its reverse (1203360250543), we get a palindrome (4653880883564).

The spelling of 3450520633021 in words is "three trillion, four hundred fifty billion, five hundred twenty million, six hundred thirty-three thousand, twenty-one".