1967920854863 has 2 divisors, whose sum is σ = 1967920854864. Its totient is φ = 1967920854862.

The previous prime is 1967920854853. The next prime is 1967920854973. The reversal of 1967920854863 is 3684580297691.

It is a weak prime.

It is an emirp because it is prime and its reverse (3684580297691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1967920854863 - 2¹² = 1967920850767 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1967920854793 and 1967920854802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1967920854853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983960427431 + 983960427432.

It is an arithmetic number, because the mean of its divisors is an integer number (983960427432).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1967920854863 = 3935841709726, but 3⋅1967920854863 = 5903762564589 is not.

Almost surely, 2^{1967920854863} is an apocalyptic number.

1967920854863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1967920854863 is an equidigital number, since it uses as much as digits as its factorization.

1967920854863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 1967920854863 in words is "one trillion, nine hundred sixty-seven billion, nine hundred twenty million, eight hundred fifty-four thousand, eight hundred sixty-three".