1968504067 has 4 divisors (see below), whose sum is σ = 1993421920. Its totient is φ = 1943586216.

The previous prime is 1968504049. The next prime is 1968504073. The reversal of 1968504067 is 7604058691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7604058691 = 4799 ⋅1584509.

It is a cyclic number.

It is not a de Polignac number, because 1968504067 - 2⁷ = 1968503939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1968504467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12458808 + ... + 12458965.

It is an arithmetic number, because the mean of its divisors is an integer number (498355480).

Almost surely, 2^1968504067 is an apocalyptic number.

1968504067 is a deficient number, since it is larger than the sum of its proper divisors (24917853).

1968504067 is an equidigital number, since it uses as much as digits as its factorization.

1968504067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24917852.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1968504067 is about 44367.8269357425. The cubic root of 1968504067 is about 1253.2722938261.

The spelling of 1968504067 in words is "one billion, nine hundred sixty-eight million, five hundred four thousand, sixty-seven".