1968011705 has 8 divisors (see below), whose sum is σ = 2576306304. Its totient is φ = 1431281200.

The previous prime is 1968011693. The next prime is 1968011723. The reversal of 1968011705 is 5071108691.

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

It is not a de Polignac number, because 1968011705 - 2⁶ = 1968011641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17890961 + ... + 17891070.

It is an arithmetic number, because the mean of its divisors is an integer number (322038288).

Almost surely, 2^1968011705 is an apocalyptic number.

It is an amenable number.

1968011705 is a deficient number, since it is larger than the sum of its proper divisors (608294599).

1968011705 is a wasteful number, since it uses less digits than its factorization.

1968011705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35782047.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 1968011705 is about 44362.2779509799. The cubic root of 1968011705 is about 1253.1677956749.

The spelling of 1968011705 in words is "one billion, nine hundred sixty-eight million, eleven thousand, seven hundred five".