8243542692 has 864 divisors, whose sum is σ = 31231549440. Its totient is φ = 1847577600.

The previous prime is 8243542691. The next prime is 8243542729. The reversal of 8243542692 is 2962453428.

8243542692 is a `hidden beast` number, since 8 + 2 + 43 + 542 + 69 + 2 = 666.

It is a super-2 number, since 2×8243542692² (a number of 21 digits) contains 22 as substring.

Its product of digits (829440) is a multiple of the sum of its prime divisors (90).

It is not an unprimeable number, because it can be changed into a prime (8243542691) 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 287 ways as a sum of consecutive naturals, for example, 265920717 + ... + 265920747.

Almost surely, 2^8243542692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8243542692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15615774720).

8243542692 is an abundant number, since it is smaller than the sum of its proper divisors (22988006748).

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

8243542692 is a wasteful number, since it uses less digits than its factorization.

8243542692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 90 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 8243542692 is about 90793.9573540002. The cubic root of 8243542692 is about 2020.0926902538.

The spelling of 8243542692 in words is "eight billion, two hundred forty-three million, five hundred forty-two thousand, six hundred ninety-two".