705117778419 has 4 divisors (see below), whose sum is σ = 940157037896. Its totient is φ = 470078518944.

The previous prime is 705117778403. The next prime is 705117778429. The reversal of 705117778419 is 914877711507.

705117778419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 705117778419 - 2⁴ = 705117778403 is a prime.

It is a super-2 number, since 2×705117778419² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705117778429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117519629734 + ... + 117519629739.

It is an arithmetic number, because the mean of its divisors is an integer number (235039259474).

Almost surely, 2^705117778419 is an apocalyptic number.

705117778419 is a deficient number, since it is larger than the sum of its proper divisors (235039259477).

705117778419 is a wasteful number, since it uses less digits than its factorization.

705117778419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235039259476.

The product of its (nonzero) digits is 3457440, while the sum is 57.

The spelling of 705117778419 in words is "seven hundred five billion, one hundred seventeen million, seven hundred seventy-eight thousand, four hundred nineteen".