1968456755 has 8 divisors (see below), whose sum is σ = 2438346624. Its totient is φ = 1523966400.

The previous prime is 1968456733. The next prime is 1968456821. The reversal of 1968456755 is 5576548691.

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

It is not a de Polignac number, because 1968456755 - 2¹⁴ = 1968440371 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1968456755.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6349706 + ... + 6350015.

It is an arithmetic number, because the mean of its divisors is an integer number (304793328).

Almost surely, 2^1968456755 is an apocalyptic number.

1968456755 is a deficient number, since it is larger than the sum of its proper divisors (469889869).

1968456755 is a wasteful number, since it uses less digits than its factorization.

1968456755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12699757.

The product of its digits is 9072000, while the sum is 56.

The square root of 1968456755 is about 44367.2937533945. The cubic root of 1968456755 is about 1253.2622531570.

The spelling of 1968456755 in words is "one billion, nine hundred sixty-eight million, four hundred fifty-six thousand, seven hundred fifty-five".