3457872787543 has 2 divisors, whose sum is σ = 3457872787544. Its totient is φ = 3457872787542.

The previous prime is 3457872787541. The next prime is 3457872787547.

3457872787543 is nontrivially palindromic in base 10.

3457872787543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 3457872787543 - 2¹ = 3457872787541 is a prime.

Together with 3457872787541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3457872787541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728936393771 + 1728936393772.

It is an arithmetic number, because the mean of its divisors is an integer number (1728936393772).

Almost surely, 2^{3457872787543} is an apocalyptic number.

3457872787543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3457872787543 is an equidigital number, since it uses as much as digits as its factorization.

3457872787543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1106380800, while the sum is 70.

The spelling of 3457872787543 in words is "three trillion, four hundred fifty-seven billion, eight hundred seventy-two million, seven hundred eighty-seven thousand, five hundred forty-three".