421355352545153 has 8 divisors (see below), whose sum is σ = 456452316369000. Its totient is φ = 388943402347344.

The previous prime is 421355352544993. The next prime is 421355352545159. The reversal of 421355352545153 is 351545253553124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54694781030464 + 366660571514689 = 7395592^2 + 19148383^2 .

It is not a de Polignac number, because 421355352545153 - 2¹⁴ = 421355352528769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421355352545095 and 421355352545104.

It is not an unprimeable number, because it can be changed into a prime (421355352545159) 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, 95893341578 + ... + 95893345971.

It is an arithmetic number, because the mean of its divisors is an integer number (57056539546125).

Almost surely, 2^{421355352545153} is an apocalyptic number.

It is an amenable number.

421355352545153 is a deficient number, since it is larger than the sum of its proper divisors (35096963823847).

421355352545153 is an equidigital number, since it uses as much as digits as its factorization.

421355352545153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191786687588 (or 191786687562 counting only the distinct ones).

The product of its digits is 27000000, while the sum is 53.

The spelling of 421355352545153 in words is "four hundred twenty-one trillion, three hundred fifty-five billion, three hundred fifty-two million, five hundred forty-five thousand, one hundred fifty-three".