2643472543 has 2 divisors, whose sum is σ = 2643472544. Its totient is φ = 2643472542.

The previous prime is 2643472529. The next prime is 2643472553. The reversal of 2643472543 is 3452743462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2643472543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2643472496 and 2643472505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2643472523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321736271 + 1321736272.

It is an arithmetic number, because the mean of its divisors is an integer number (1321736272).

Almost surely, 2^2643472543 is an apocalyptic number.

2643472543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643472543 is an equidigital number, since it uses as much as digits as its factorization.

2643472543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 40.

The square root of 2643472543 is about 51414.7113480179. The cubic root of 2643472543 is about 1382.6903588322.

The spelling of 2643472543 in words is "two billion, six hundred forty-three million, four hundred seventy-two thousand, five hundred forty-three".