7930742543 has 2 divisors, whose sum is σ = 7930742544. Its totient is φ = 7930742542.

The previous prime is 7930742531. The next prime is 7930742579. The reversal of 7930742543 is 3452470397.

7930742543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7930742543 - 2¹⁴ = 7930726159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7930742494 and 7930742503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7930742593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3965371271 + 3965371272.

It is an arithmetic number, because the mean of its divisors is an integer number (3965371272).

Almost surely, 2^7930742543 is an apocalyptic number.

7930742543 is a deficient number, since it is larger than the sum of its proper divisors (1).

7930742543 is an equidigital number, since it uses as much as digits as its factorization.

7930742543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 44.

The square root of 7930742543 is about 89054.7165679617. The cubic root of 7930742543 is about 1994.2118098375.

The spelling of 7930742543 in words is "seven billion, nine hundred thirty million, seven hundred forty-two thousand, five hundred forty-three".