705545045981 has 8 divisors (see below), whose sum is σ = 726230323200. Its totient is φ = 685096172208.

The previous prime is 705545045923. The next prime is 705545046001. The reversal of 705545045981 is 189540545507.

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

It is a cyclic number.

It is not a de Polignac number, because 705545045981 - 2²² = 705540851677 is a prime.

It is a super-2 number, since 2×705545045981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705545045911) 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 7 ways as a sum of consecutive naturals, for example, 59094806 + ... + 59106743.

It is an arithmetic number, because the mean of its divisors is an integer number (90778790400).

Almost surely, 2^705545045981 is an apocalyptic number.

It is an amenable number.

705545045981 is a deficient number, since it is larger than the sum of its proper divisors (20685277219).

705545045981 is a wasteful number, since it uses less digits than its factorization.

705545045981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118201723.

The product of its (nonzero) digits is 5040000, while the sum is 53.

The spelling of 705545045981 in words is "seven hundred five billion, five hundred forty-five million, forty-five thousand, nine hundred eighty-one".