7957438543 has 2 divisors, whose sum is σ = 7957438544. Its totient is φ = 7957438542.

The previous prime is 7957438537. The next prime is 7957438549. The reversal of 7957438543 is 3458347597.

It is a balanced prime because it is at equal distance from previous prime (7957438537) and next prime (7957438549).

It is a cyclic number.

It is not a de Polignac number, because 7957438543 - 2⁹ = 7957438031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7957438549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3978719271 + 3978719272.

It is an arithmetic number, because the mean of its divisors is an integer number (3978719272).

Almost surely, 2^7957438543 is an apocalyptic number.

7957438543 is a deficient number, since it is larger than the sum of its proper divisors (1).

7957438543 is an equidigital number, since it uses as much as digits as its factorization.

7957438543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 55.

The square root of 7957438543 is about 89204.4760255897. The cubic root of 7957438543 is about 1996.4469034070.

The spelling of 7957438543 in words is "seven billion, nine hundred fifty-seven million, four hundred thirty-eight thousand, five hundred forty-three".