705793979731 has 4 divisors (see below), whose sum is σ = 730131703200. Its totient is φ = 681456256264.

The previous prime is 705793979717. The next prime is 705793979747. The reversal of 705793979731 is 137979397507.

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 705793979731 - 2⁵ = 705793979699 is a prime.

It is a super-2 number, since 2×705793979731² (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 (705793979791) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12168861691 + ... + 12168861748.

It is an arithmetic number, because the mean of its divisors is an integer number (182532925800).

Almost surely, 2^705793979731 is an apocalyptic number.

705793979731 is a deficient number, since it is larger than the sum of its proper divisors (24337723469).

705793979731 is a wasteful number, since it uses less digits than its factorization.

705793979731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24337723468.

The product of its (nonzero) digits is 78764805, while the sum is 67.

The spelling of 705793979731 in words is "seven hundred five billion, seven hundred ninety-three million, nine hundred seventy-nine thousand, seven hundred thirty-one".