1911644927963 has 2 divisors, whose sum is σ = 1911644927964. Its totient is φ = 1911644927962.

The previous prime is 1911644927887. The next prime is 1911644928019. The reversal of 1911644927963 is 3697294461191.

It is a strong prime.

It is an emirp because it is prime and its reverse (3697294461191) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1911644927963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1911644927896 and 1911644927905.

It is not a weakly prime, because it can be changed into another prime (1911644927063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955822463981 + 955822463982.

It is an arithmetic number, because the mean of its divisors is an integer number (955822463982).

Almost surely, 2^{1911644927963} is an apocalyptic number.

1911644927963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1911644927963 is an equidigital number, since it uses as much as digits as its factorization.

1911644927963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 62.

The spelling of 1911644927963 in words is "one trillion, nine hundred eleven billion, six hundred forty-four million, nine hundred twenty-seven thousand, nine hundred sixty-three".