3971354264543 has 2 divisors, whose sum is σ = 3971354264544. Its totient is φ = 3971354264542.

The previous prime is 3971354264539. The next prime is 3971354264561. The reversal of 3971354264543 is 3454624531793.

3971354264543 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 3971354264543 - 2² = 3971354264539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3971354264743) 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, 1985677132271 + 1985677132272.

It is an arithmetic number, because the mean of its divisors is an integer number (1985677132272).

Almost surely, 2^{3971354264543} is an apocalyptic number.

3971354264543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3971354264543 is an equidigital number, since it uses as much as digits as its factorization.

3971354264543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 56.

The spelling of 3971354264543 in words is "three trillion, nine hundred seventy-one billion, three hundred fifty-four million, two hundred sixty-four thousand, five hundred forty-three".