705956871823 has 4 divisors (see below), whose sum is σ = 806807853520. Its totient is φ = 605105890128.

The previous prime is 705956871811. The next prime is 705956871833. The reversal of 705956871823 is 328178659507.

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

It is a cyclic number.

It is not a de Polignac number, because 705956871823 - 2⁵ = 705956871791 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 (705956871833) 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, 50425490838 + ... + 50425490851.

It is an arithmetic number, because the mean of its divisors is an integer number (201701963380).

Almost surely, 2^705956871823 is an apocalyptic number.

705956871823 is a deficient number, since it is larger than the sum of its proper divisors (100850981697).

705956871823 is a wasteful number, since it uses less digits than its factorization.

705956871823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100850981696.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 705956871823 in words is "seven hundred five billion, nine hundred fifty-six million, eight hundred seventy-one thousand, eight hundred twenty-three".