421450354353345 has 16 divisors (see below), whose sum is σ = 687043596532032. Its totient is φ = 220532512466240.

The previous prime is 421450354353331. The next prime is 421450354353349. The reversal of 421450354353345 is 543353453054124.

It is not a de Polignac number, because 421450354353345 - 2¹⁵ = 421450354320577 is a prime.

It is a super-2 number, since 2×421450354353345² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421450354353349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265063115151 + ... + 265063116740.

It is an arithmetic number, because the mean of its divisors is an integer number (42940224783252).

Almost surely, 2^{421450354353345} is an apocalyptic number.

It is an amenable number.

421450354353345 is a deficient number, since it is larger than the sum of its proper divisors (265593242178687).

421450354353345 is a wasteful number, since it uses less digits than its factorization.

421450354353345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530126231952.

The product of its (nonzero) digits is 25920000, while the sum is 51.

The spelling of 421450354353345 in words is "four hundred twenty-one trillion, four hundred fifty billion, three hundred fifty-four million, three hundred fifty-three thousand, three hundred forty-five".