8240543959 has 2 divisors, whose sum is σ = 8240543960. Its totient is φ = 8240543958.

The previous prime is 8240543953. The next prime is 8240544001. The reversal of 8240543959 is 9593450428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8240543959 - 2¹³ = 8240535767 is a prime.

It is a super-2 number, since 2×8240543959² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8240543953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4120271979 + 4120271980.

It is an arithmetic number, because the mean of its divisors is an integer number (4120271980).

Almost surely, 2^8240543959 is an apocalyptic number.

8240543959 is a deficient number, since it is larger than the sum of its proper divisors (1).

8240543959 is an equidigital number, since it uses as much as digits as its factorization.

8240543959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The square root of 8240543959 is about 90777.4419060154. The cubic root of 8240543959 is about 2019.8477125170.

The spelling of 8240543959 in words is "eight billion, two hundred forty million, five hundred forty-three thousand, nine hundred fifty-nine".