6943643453 has 2 divisors, whose sum is σ = 6943643454. Its totient is φ = 6943643452.

The previous prime is 6943643431. The next prime is 6943643491. The reversal of 6943643453 is 3543463496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6358148644 + 585494809 = 79738^2 + 24197^2 .

It is a cyclic number.

It is not a de Polignac number, because 6943643453 - 2¹⁰ = 6943642429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6943643398 and 6943643407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6943603453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3471821726 + 3471821727.

It is an arithmetic number, because the mean of its divisors is an integer number (3471821727).

Almost surely, 2^6943643453 is an apocalyptic number.

It is an amenable number.

6943643453 is a deficient number, since it is larger than the sum of its proper divisors (1).

6943643453 is an equidigital number, since it uses as much as digits as its factorization.

6943643453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 47.

The square root of 6943643453 is about 83328.5272460758. The cubic root of 6943643453 is about 1907.7837155966.

The spelling of 6943643453 in words is "six billion, nine hundred forty-three million, six hundred forty-three thousand, four hundred fifty-three".