434706721023 has 4 divisors (see below), whose sum is σ = 579608961368. Its totient is φ = 289804480680.

The previous prime is 434706721021. The next prime is 434706721067. The reversal of 434706721023 is 320127607434.

It is a happy number.

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

It is not a de Polignac number, because 434706721023 - 2¹ = 434706721021 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 (434706721021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72451120168 + ... + 72451120173.

It is an arithmetic number, because the mean of its divisors is an integer number (144902240342).

Almost surely, 2^434706721023 is an apocalyptic number.

434706721023 is a deficient number, since it is larger than the sum of its proper divisors (144902240345).

434706721023 is a wasteful number, since it uses less digits than its factorization.

434706721023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144902240344.

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 434706721023 in words is "four hundred thirty-four billion, seven hundred six million, seven hundred twenty-one thousand, twenty-three".