705958643940 has 48 divisors (see below), whose sum is σ = 2156382768960. Its totient is φ = 171141489280.

The previous prime is 705958643921. The next prime is 705958643959. The reversal of 705958643940 is 49346859507.

It is an interprime number because it is at equal distance from previous prime (705958643921) and next prime (705958643959).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534816495 + ... + 534817814.

It is an arithmetic number, because the mean of its divisors is an integer number (44924641020).

Almost surely, 2^705958643940 is an apocalyptic number.

It is an amenable number.

705958643940 is an abundant number, since it is smaller than the sum of its proper divisors (1450424125020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

705958643940 is a wasteful number, since it uses less digits than its factorization.

705958643940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069634332 (or 1069634330 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 705958643940 in words is "seven hundred five billion, nine hundred fifty-eight million, six hundred forty-three thousand, nine hundred forty".