1968075767 has 8 divisors (see below), whose sum is σ = 2280909312. Its totient is φ = 1663162200.

The previous prime is 1968075751. The next prime is 1968075773. The reversal of 1968075767 is 7675708691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1968075767 - 2⁴ = 1968075751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968075667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979459 + ... + 1980452.

It is an arithmetic number, because the mean of its divisors is an integer number (285113664).

Almost surely, 2^1968075767 is an apocalyptic number.

1968075767 is a deficient number, since it is larger than the sum of its proper divisors (312833545).

1968075767 is an equidigital number, since it uses as much as digits as its factorization.

1968075767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959989.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The square root of 1968075767 is about 44362.9999774587. Note that the first 4 decimals coincide. The cubic root of 1968075767 is about 1253.1813930812.

The spelling of 1968075767 in words is "one billion, nine hundred sixty-eight million, seventy-five thousand, seven hundred sixty-seven".