3971828971783 has 2 divisors, whose sum is σ = 3971828971784. Its totient is φ = 3971828971782.

The previous prime is 3971828971771. The next prime is 3971828971829. The reversal of 3971828971783 is 3871798281793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3971828971783 - 2¹³ = 3971828963591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3971828971183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985914485891 + 1985914485892.

It is an arithmetic number, because the mean of its divisors is an integer number (1985914485892).

Almost surely, 2^{3971828971783} is an apocalyptic number.

3971828971783 is a deficient number, since it is larger than the sum of its proper divisors (1).

3971828971783 is an equidigital number, since it uses as much as digits as its factorization.

3971828971783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256048128, while the sum is 73.

The spelling of 3971828971783 in words is "three trillion, nine hundred seventy-one billion, eight hundred twenty-eight million, nine hundred seventy-one thousand, seven hundred eighty-three".