643103452534 has 8 divisors (see below), whose sum is σ = 964928695248. Its totient is φ = 321460554120.

The previous prime is 643103452517. The next prime is 643103452547. The reversal of 643103452534 is 435254301346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×643103452534³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45577257 + ... + 45591364.

It is an arithmetic number, because the mean of its divisors is an integer number (120616086906).

Almost surely, 2^643103452534 is an apocalyptic number.

643103452534 is a deficient number, since it is larger than the sum of its proper divisors (321825242714).

643103452534 is a wasteful number, since it uses less digits than its factorization.

643103452534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91172150.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 643103452534 in words is "six hundred forty-three billion, one hundred three million, four hundred fifty-two thousand, five hundred thirty-four".