8243743506 has 32 divisors (see below), whose sum is σ = 16845573888. Its totient is φ = 2688284160.

The previous prime is 8243743499. The next prime is 8243743517. The reversal of 8243743506 is 6053473428.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852756 + ... + 862368.

It is an arithmetic number, because the mean of its divisors is an integer number (526424184).

Almost surely, 2^8243743506 is an apocalyptic number.

8243743506 is an abundant number, since it is smaller than the sum of its proper divisors (8601830382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8243743506 is a wasteful number, since it uses less digits than its factorization.

8243743506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12706.

The product of its (nonzero) digits is 483840, while the sum is 42.

The square root of 8243743506 is about 90795.0632248252. The cubic root of 8243743506 is about 2020.1090933794.

The spelling of 8243743506 in words is "eight billion, two hundred forty-three million, seven hundred forty-three thousand, five hundred six".