354423471643 has 4 divisors (see below), whose sum is σ = 355577945800. Its totient is φ = 353268997488.

The previous prime is 354423471641. The next prime is 354423471673. The reversal of 354423471643 is 346174324453.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 354423471643 - 2¹ = 354423471641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 354423471593 and 354423471602.

It is not an unprimeable number, because it can be changed into a prime (354423471641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577236618 + ... + 577237231.

It is an arithmetic number, because the mean of its divisors is an integer number (88894486450).

Almost surely, 2^354423471643 is an apocalyptic number.

354423471643 is a deficient number, since it is larger than the sum of its proper divisors (1154474157).

354423471643 is a wasteful number, since it uses less digits than its factorization.

354423471643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154474156.

The product of its digits is 2903040, while the sum is 46.

It can be divided in two parts, 35442347 and 1643, that added together give a triangular number (35443990 = T₈₄₁₉).

The spelling of 354423471643 in words is "three hundred fifty-four billion, four hundred twenty-three million, four hundred seventy-one thousand, six hundred forty-three".