3965390993747 has 2 divisors, whose sum is σ = 3965390993748. Its totient is φ = 3965390993746.

The previous prime is 3965390993653. The next prime is 3965390993749. The reversal of 3965390993747 is 7473990935693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3965390993747 - 2¹⁰ = 3965390992723 is a prime.

Together with 3965390993749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3965390993749) 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, 1982695496873 + 1982695496874.

It is an arithmetic number, because the mean of its divisors is an integer number (1982695496874).

Almost surely, 2^{3965390993747} is an apocalyptic number.

3965390993747 is a deficient number, since it is larger than the sum of its proper divisors (1).

3965390993747 is an equidigital number, since it uses as much as digits as its factorization.

3965390993747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1041624360, while the sum is 74.

The spelling of 3965390993747 in words is "three trillion, nine hundred sixty-five billion, three hundred ninety million, nine hundred ninety-three thousand, seven hundred forty-seven".